List of refrigerants

This is a list of refrigerants, sorted by their ASHRAE-designated numbers, commonly known as R numbers. Many modern refrigerants are human-made halogenated gases, especially fluorinated gases and chlorinated gases, that are frequently referred to as Freon (a registered trademark of Chemours).

Freons are responsible for the formation of the ozone hole. The Vienna Convention for the Protection of the Ozone Layer and the Montreal Protocol are international agreements that oblige signatory countries to limit the emission of ozone-depleting gases. The Kigali Amendment to the Montreal Protocol furthermore obliges signatory countries to limit the emission of gases with high global warming potential.

Numbering scheme

According to ASHRAE standard 34, the R-number of a chemical refrigerant is assigned systematically according to its molecular structure and has between two and four digits. If there are carbon-carbon multiple bonds, there are four digits in all: the number of these bonds is the first digit and the number of carbon atoms minus one (C-1) is next. If there is more than one carbon atom but no multiple bonds, there are three digits, and the number of carbon atoms minus one is the first digit. If there is only one carbon atom, then there are only two digits. The last two digits are always the number of hydrogen atoms plus one (H+1), followed by the number of fluorine atoms. Any other atoms attached to the carbons are assumed to be chlorine atoms. For example, R-22 has one carbon atom, one hydrogen atom (2−1 = 1), two fluorine atoms, and one chlorine atom (4−2−1 = 1), so it is chlorodifluoromethane, while R-134 has two carbon atoms (2−1 = 1), two hydrogen atoms (3−1 = 2), four fluorine atoms, and no chlorine atoms (6−2−4 = 0), so it is one of the tetrafluoroethanes. This basic scheme is modified as follows:

• Capital letters "B" and "I" are suffixed, together with atom counts, if chlorine atoms have been replaced with bromine or iodine.
• If there are two carbons, the isomer without suffix is the most symmetrical; after this, lower-case suffixed letters "a", "b", ..., are added, moving forwards through the alphabet as symmetry decreases.
• If there are more than two carbons, a more complex system of suffixed letters and possibly numbers is used to distinguish isomers, when necessary.
• The suffixes "(Z)" and "(E)" may be used to differentiate (Z)- and (E)- (cis- and trans-) isomers.
• For larger molecules, numerical "digits" exceeding 9 may occur; in this case, these numbers are separated by dashes.
• For a cyclic carbon skeleton, the prefixed capital letter "C" is used.
• For an oxygen-containing refrigerant (an ether), the prefixed capital letter "E" is used.^[1]: §4

There are separate numbering schemes for zeotropic and azeotropic blends, organic chemicals which don't fit into the scheme above, and inorganic chemicals:

• Zeotropic blends are numbered starting with 400. Suffixed capital letters "A", "B", ... may be used to distinguish different blends with the same constitutents.
• Azeotropic blends are numbered similarly to zeotropic blends, but starting with 500.
• Other organic chemicals may be numbered starting with 600. Suffixed lowercase letters "a", "b", ..., may be used to distinguish isomers.
• Inorganic chemicals are given numbers equalling 700 plus their molecular weight, if the weight is less than 100, or 7000 plus the molecular weight otherwise. Suffixed capital letters "A", "B", ... may be used to distinguish different chemicals with the same molecular weight.^[1]: §4

Columns

The table is sortable by each of the following refrigerant properties (scroll right or reduce magnification to view more properties):

• Type/prefix (see legends)
• ASHRAE number
• IUPAC chemical name
• molecular formula
• CAS registry number / blend name
• Atmospheric lifetime in years
• Semi-empirical ozone depletion potential, ODP (normalized to be 1 for R-11)
• Net global warming potential, GWP, over a 100-year time horizon (normalized to be 1 for R-744, carbon dioxide)
• Occupational exposure limit/permissible exposure limit in parts per million (volume per volume) over a time-weighted average (TWA) concentration for a normal eight-hour work day and a 40-hour work week
• ASHRAE 34 safety group in toxicity & flammability (in air @ 60 °C, 101.3 kPa) classing (see legends)
• Refrigerant concentration limit / immediately dangerous to life or health in parts per million (volume per volume) and grams per cubic meter
• Molecular mass in atomic mass units
• Normal boiling points for pure substances, bubble and dew points for zeotropic blends, or normal boiling point and azeotropic temperature for the azeotropic blends, at 101,325 Pa (1 atmosphere) and in degrees Celsius
• Critical temperature in degrees Celsius
• Absolute critical pressure in kilopascals

Since over 100,000 refrigerant blends are possible,^[2] this list should only have notable refrigerants and refrigerant blends.

List

Type	ASHRAE number	IUPAC chemical name	Molecular formula	CAS no/ blend name	Atmospheric lifetime (years)	Semi- empirical ODP (R-11 = 1)	Net GWP 100-yr (R-744 = 1)	OEL/PEL ppm (v/v) & ASHRAE 34 safety group	RCL/IDLH (ppm v/v, followed by g/m3)		Molecular mass u	Boiling, or bubble/dew /azeotropic point(s) °C	Critical temp. °C	Critical pressure, absolute kPa
									PCC	R-10					Carbon tetrachloride (Tetrachloromethane)	CCl4	56-23-5	26[3][4]	1.2[5]	1,400[6]	100? B1[7]			153.8[8]	76.72[9]	283.35[10]	4,560[10]
CFC	R-11	Trichlorofluoromethane	CCl3F	75-69-4	45[3][4]	1.0[4]	4,660[11]	1,000[12] A1[12]	1,100[12]	6.2[12]	137.4[8]	23.77[9]	197.96[10]	4,408[10]
CFC	R-12	Dichlorodifluoromethane	CCl2F2	75-71-8	100[3][4]	1.0[4]	10,200[11]	1,000[12] A1[12]	18,000[12]	90[12]	120.9[8]	−29.8[9]	111.97[10]	4,136[10]
H	R-12B1	Bromochlorodifluoromethane	CBrClF2 or CF2ClBr	353-59-3	16[3][4]	7.1[4]	1,750[6]				165.4[8]	−3.7[9]	153.8[10]	4,102[10]
H	R-12B2	Dibromodifluoromethane	CBr2F2	75-61-6	2.9[4]	1.7[4]					209.8[8]	22.8[9]	198.11[10]	4,130[10]
CFC	R-13	Chlorotrifluoromethane	CClF3	75-72-9	640[3]	1[13]	13,900[11]	1,000[12] A1[12]	40,000?	200?	104.5[8]	−81.5[9]	28.73[10]	3,877[10]
H	R-13B1	Bromotrifluoromethane	CBrF3 or CF3Br	75-63-8	65[3][4]	16[4]	6,290[6]	1,000[12] A1[12]			148.9[8]	−57.75[9]	67[10]	3,964[10]
H	R-13I1	Trifluoroiodomethane	CF3I	2314-97-8				500[14] A1[14]			195.9[14]	−21.9[14]
PFC	R-14	Tetrafluoromethane	CF4	75-73-0	50,000[3]	0[15]	7,390[3]	1,000[12] A1[12]	110,000[12]	400[12]	88[8]	−127.8[9]	−45.64[10]	3,750[10]
HCC	R-20	Chloroform (Trichloromethane)	CHCl3	67-66-3	0.51[3]		31[3]				119.4[8]	61.2[9]	262.35[10]	5,480[10]
HCFC	R-21	Dichlorofluoromethane	CHFCl2	75-43-4	1.7[4]	0.04[16]	148[6]	100? B1[12]			102.9[8]	8.92[9]	178.45[10]	5,180[10]
HCFC	R-22	Chlorodifluoromethane	CHClF2	75-45-6	12.0[3][4]	0.055[4][17]	1,760[6]	1,000[12] A1[12]	59,000[12]	210[12]	86.5[8]	−40.7[9]	96.14[10]	4,990[10]
H	R-22B1	Bromodifluoromethane	CHBrF2 or CHF2Br	1511-62-2	5.8[4]	0.74[13]	404[4]				130.9[8]	−14.6[9]	138.83[10]	5,132[10]
HFC	R-23	Trifluoromethane (Fluoroform)	CHF3	75-46-7	270[3]	0[15]	12,400[6]	1,000[12] A1[12]	41,000[12]	120[12]	70[8]	−82.1[9]	25.92[10]	4,836[10]
HCC	R-30	Dichloromethane (Methylene chloride)	CH2Cl2	75-09-2	0.38[3]	0[18]	8.7[3]	100? B2[12]			84.9[8]	39.6[9]	235.15[10]	6,080[10]
HCFC	R-31	Chlorofluoromethane	CH2FCl	593-70-4		0.02[16]		350? B2?	10,000?	20?	68.5[8]	−9.1[9]	151.76[10]	5,131[10]
HFC	R-32	Difluoromethane	CH2F2	75-10-5	4.9[3]	0[15]	677[6]	1,000[12] A2L[19]	36,000[12]	77[12]	52[8]	−52[9][20]	78.11[10]	5,782[10]
HCC	R-40	Chloromethane	CH3Cl	74-87-3	1.0[3][4]	0.02[4]	13[3]	100? B2[12]			50.5[8]	−24.2[9]	143.05[10]	6,660[10]
HFC	R-41	Fluoromethane	CH3F	593-53-3	2.4[3]	0[15]	116[6]				34[8]	−78.2[9]	44.13[10]	5,897[10]
HC	R-50	Methane	CH4	74-82-8	12 ± 3[3]	<0(smog)[21]	28[6]	1,000[12] A3[12]	9,000?	9?	16.04[8]	−162±2[9]	−82.3[22]	4,640[22]
PCC	R-110	Hexachloroethane	C2Cl6	67-72-1							236.7[8]		431.28[10]	3,937[10]
CFC	R-111	Pentachlorofluoroethane	C2FCl5	354-56-3		1[13]					220.3[8]	135[9]
CFC	R-112	1,1,2,2-Tetrachloro-1,2-difluoroethane	C2F2Cl4	76-12-0		1[13]					203.8[8]
CFC	R-112a	1,1,1,2-Tetrachloro-2,2-difluoroethane	C2F2Cl4	76-11-9		1[a]					203.8[8]
CFC	R-113	1,1,2-Trichloro-1,2,2-trifluoroethane	C2F3Cl3	76-13-1	85[3][4]	1.0[4]	5,820[11]	1,000[12] A1[12]	2,600[12]	20[12]	187.4[8]	48[20]	214.06[10]	3,392[10]
CFC	R-113a	1,1,1-Trichloro-2,2,2-trifluoroethane	C2F3Cl3	354-58-5		1[a]					187.4[8]
CFC	R-114	1,2-Dichlorotetrafluoroethane	C2F4Cl2	76-14-2	300[3][4]	1.0[4]	8,590[11]	1,000[12] A1[12]	20,000[12]	140[12]	170.9[8]	3.5[9]	145.68[10]	3,257[10]
CFC	R-114a	1,1-Dichlorotetrafluoroethane	C2F4Cl2	374-07-2		1[a]					170.9[8]
H	R-114B2	Dibromotetrafluoroethane	C2F4Br2 or CF2BrCF2Br	124-73-2	20[3][4]	11.5[4]	1,470[6]				259.8[8]	47.3[9]	214.67[10]
CFC	R-115	Chloropentafluoroethane	C2F5Cl	76-15-3	1,700[3][4]	0.44[4]	7,670[6]	1,000[12] A1[12]	120,000[12]	760[12]	154.5[8]	−39.1[9]	79.95[10]	3,120[10]
PFC	R-116	Hexafluoroethane	C2F6	76-16-4	10,000[3]	0[15]	12,200[3]	1,000[12] A1[12]	97,000[12]	550[12]	138[8]	−78.2[9]	19.88[10]	3,042[10]
HCC	R-120	Pentachloroethane	C2HCl5	76-01-7							202.3[8]
HCFC	R-121	1,1,2,2-Tetrachloro-1-fluoroethane	C2HFCl4	354-14-3		0.01–0.04[16]					185.8[8]
HCFC	R-121a	1,1,1,2-Tetrachloro-2-fluoroethane	C2HFCl4	354-11-0		0.01–0.04[b]					185.8[8]
HCFC	R-122	1,1,2-Trichloro-2,2-difluoroethane	C2HF2Cl3	354-21-2		0.02–0.08[16]					169.4[8]
HCFC	R-122a	1,1,2-Trichloro-1,2-difluoroethane	C2HF2Cl3	354-15-4		0.02–0.08[b]					169.4[8]
HCFC	R-122b	1,1,1-Trichloro-2,2-difluoroethane	C2HF2Cl3	354-12-1		0.02–0.08[b]					169.4[8]
HCFC	R-123	2,2-Dichloro-1,1,1-trifluoroethane	C2HF3Cl2	306-83-2	1.3[3][4]	0.02[4]	79[6]	50[12] B1[12]	9,100[12]	57[12]	152.9[8]	27.6[9]	183.68[10]	3,662[10]
HCFC	R-123a	1,2-Dichloro-1,1,2-trifluoroethane	C2HF3Cl2	354-23-4	1.3?[c]	0.02?[b]	77?[c]				152.9[8]
HCFC	R-123b	1,1-Dichloro-1,2,2-trifluoroethane	C2HF3Cl2	812-04-4	1.3?[c]	0.02?[b]	77?[c]				152.9[8]
HCFC	R-124	1-Chloro-1,2,2,2-tetrafluoroethane	C2HF4Cl	2837-89-0	5.8[3][4]	0.022[4]	527[6]	1,000[12] A1[12]	10,000[12]	56[12]	136.5[8]	−12[20]	122.28[10]	3,624[10]
HCFC	R-124a	1-Chloro-1,1,2,2-tetrafluoroethane	C2HF4Cl	354-25-6	5.8?[c]	0.022?[b]	609?[c]				136.5[8]
HFC	R-125	Pentafluoroethane	C2HF5	354-33-6	29[3]	0[15]	3,170[6]	1,000[12] A1[12]	75,000[12]	370[12]	120[8]	−48.5[9]	66.18[10]	3,629[10]
HFC	R-E125	Pentafluorodimethyl ether	C2F5OC2F5	3822-68-2	136[3]	0[d]	14,900[3]				136[8]
HCC	R-130	1,1,2,2-Tetrachloroethane	C2H2Cl4	79-34-5							167.8[8]	146.5[9]	388.06[10]	5,840[10]
HCC	R-130a	1,1,1,2-Tetrachloroethane	C2H2Cl4	630-20-6							167.8[8]	130.5[9]
HCFC	R-131	1,1,2-Trichloro-2-fluoroethane	C2H2FCl3	359-28-4		0.007–0.05[16]					151.4[8]
HCFC	R-131a	1,1,2-Trichloro-1-fluoroethane	C2H2FCl3	811-95-0		0.007–0.05[b]					151.4[8]
HCFC	R-131b	1,1,1-Trichloro-2-fluoroethane	C2H2FCl3	2366-36-1		0.007–0.05[b]					151.4[8]
HCFC	R-132	1,2-Dichloro-1,2-difluoroethane	C2H2F2Cl2	431-06-1		0.008–0.05[b]					134.9[8]
HCFC	R-132a	1,1-Dichloro-2,2-difluoroethane	C2H2F2Cl2	471-43-2		0.008–0.05[b]					134.9[8]
HCFC	R-132b	1,2-Dichloro-1,1-difluoroethane	C2H2F2Cl2	1649-08-7		0.008–0.05[16]					134.9[8]
HCFC	R-132c	1,1-Dichloro-1,2-difluoroethane	C2H2F2Cl2	1842-05-3		0.008–0.05[b]					134.9[8]
H	R-132bB2	1,2-Dibromo-1,1-difluoroethane	C2H2Br2F2	75-82-1		0.2–1.5[13]					223.8[8]
HCFC	R-133	1-Chloro-1,2,2-Trifluoroethane	C2H2F3Cl	431-07-2		0.02–0.06[b]					118.5[8]
HCFC	R-133a	1-Chloro-2,2,2-Trifluoroethane	C2H2F3Cl	75-88-7		0.02–0.06[16]					118.5[8]
HCFC	R-133b	1-Chloro-1,1,2-Trifluoroethane	C2H2F3Cl	421-04-5		0.02–0.06[b]					118.5[8]
HFC	R-134	1,1,2,2-Tetrafluoroethane	C2H2F4	359-35-3	9.6[3]	0[15]	1,120[6]				102[8]
HFC	R-134a	1,1,1,2-Tetrafluoroethane	C2H2F4	811-97-2	14[3]	0[15][18]	1,300[6]	1,000[12] A1[12]	50,000[12]	210[12]	102[8]	−26.3[9]	101.06[10]	4,059[10]
HFC	R-E134	Bis(difluoromethyl)ether	C2H2F4O	1691-17-4	26[3]	0[d]	6,320[3]				118[8]
HCC	R-140	1,1,2-Trichloroethane	C2H3Cl3	79-00-5							133.4[8]	112.5±2.5[9]
HCC	R-140a	1,1,1-Trichloroethane (Methyl chloroform)	C2H3Cl3 or CH3CCl3	71-55-6	5.0[3][4]	0.12[4]	160[6]				133.4[8]	74[9]
HCFC	R-141	1,2-Dichloro-1-fluoroethane	C2H3FCl2	430-57-9	9.3?[c]	0.12?[b]	725?[c]				116.9[8]
H	R-141B2	1,2-Dibromo-1-fluoroethane	C2H3Br2F	358-97-4		0.1–1.7[13]					205.9[8]
HCFC	R-141a	1,1-Dichloro-2-fluoroethane	C2H3FCl2	430-53-5	9.3?[c]	0.12?[b]	725?[c]				116.9[8]
HCFC	R-141b	1,1-Dichloro-1-fluoroethane	C2H3FCl2	1717-00-6	9.3[3][4]	0.12[4]	725[3]	500[12] A2?	2,600[12]	12[12]	116.9[8]	32[9][20]	204.2[10]	4,250[10]
HCFC	R-142a	1-Chloro-1,2-difluoroethane	C2H3F2Cl	338-64-7	17.9?[c]	0.07?[b]	2,310?[c]				100.5[8]
HCFC	R-142b	1-Chloro-1,1-difluoroethane	C2H3F2Cl	75-68-3	17.9[3][4]	0.07[4]	2,310[3]	1,000[12] A2[12]	20,000[12]	83[12]	100.5[8]	−10[9][20]	137.1[10]	4,123[10]
HFC	R-143	1,1,2-Trifluoroethane	C2H3F3	430-66-0	3.5[3]	0[15]	328[6]				84[8]
HFC	R-143a	1,1,1-Trifluoroethane	C2H3F3	420-46-2	52[3]	0[15]	4,800[6]	1,000[12] A2L[19]	21,000[12]	70[12]	84[8]	−47.6[9]	72.89[10]	3,776[10]
HFC	R-E143a	Methyl trifluoromethyl ether	C2H3F3O	421-14-7	4.3[3]	0[d]	756[3]				100[8]
HCC	R-150	1,2-Dichloroethane	C2H4Cl2	107-06-2							99[8]	84[9]	292.83[10]	5,370[10]
HCC	R-150a	1,1-Dichloroethane	C2H4Cl2	75-34-3							99[8]	57.2[9]	249.83[10]	5,070[10]
HCFC	R-151	1-Chloro-2-fluoroethane	C2H4ClF	762-50-5							82.5[8]
HCFC	R-151a	1-Chloro-1-fluoroethane	C2H4ClF	1615-75-4							82.5[8]
HFC	R-152	1,2-Difluoroethane	C2H4F2	624-72-6	0.60[3]	0[d]	16[6]				66[8]
HFC	R-152a	1,1-Difluoroethane	C2H4F2	75-37-6	1.4[3]	0[15][18]	138[6]	1,000[12] A2[12]	12,000[12]	32[12]	66[8]	−25[9][20]	113.26[10]	4,517[10]
HCC	R-160	Chloroethane (ethyl chloride)	C2H5Cl	75-00-3							64.5[8]	12.3[9]	187.28[10]	5,268[10]
HFC	R-161	Fluoroethane	C2H5F	353-36-6	0.3[3]	0[d]	4[6]				48.1[8]		102.22[10]	4,702[10]
HC	R-170	Ethane	C2H6 or CH3CH3	74-84-0	58 days[23]	< 0(smog)[e]	5.5[3]–10.2[23]	1,000[12] A3[12]	7,000[12]	8.7[12]	30.07[8]	−88.6[9][24]	32.18[10]	4,872[10]
HC	R-E170	Dimethyl ether	CH3OCH3	115-10-6	0.015[3]	< 0(smog)[e]	1[3]	1,000[12] A3[12]	8,500[12]	16[12]	46.1[8]	−24[9]
CFC	R-211	1,1,1,2,2,3,3-Heptachloro-3-fluoropropane	C3FCl7	422-78-6		1[13]					303.2[8]
CFC	R-212	Hexachlorodifluoropropane	C3F2Cl6	134452-44-1		1[13]					286.7[8]
CFC	R-213	1,1,1,3,3-Pentachloro-2,2,3-trifluoropropane	C3F3Cl5	2354-06-5		1[13]					270.3[8]
CFC	R-214	1,2,2,3-Tetrachloro-1,1,3,3-tetrafluoropropane	C3F4Cl4	2268-46-4		1[13]					253.8[8]
CFC	R-215	1,1,1-Trichloro-2,2,3,3,3-pentafluoropropane	C3F5Cl3	4259-43-2		1[13]					237.4[8]
CFC	R-216	1,2-Dichloro-1,1,2,3,3,3-hexafluoropropane	C3F6Cl2	661-97-2		1[13]					220.9[8]
CFC	R-216ca	1,3-Dichloro-1,1,2,2,3,3-hexafluoropropane	C3F6Cl2	662-01-1		1[a]					220.9[8]
CFC	R-217	1-Chloro-1,1,2,2,3,3,3-heptafluoropropane	C3F7Cl	422-86-6		1[13]					204.5[8]
CFC	R-217ba	2-Chloro-1,1,1,2,3,3,3-heptafluoropropane	C3F7Cl	76-18-6		1[a]					204.5[8]
PFC	R-218	Octafluoropropane	C3F8	76-19-7	2,600[3]	0[15]	8,830[3]	1,000[12] A1[12]	90,000[12]	690[12]	188[8]	−36.7[9]
HCFC	R-221	1,1,1,2,2,3-Hexachloro-3-fluoropropane	C3HFCl6	422-26-4		0.015–0.07[16]					268.7[8]
HCFC	R-222	Pentachlorodifluoropropane	C3HF2Cl5	134237-36-8		0.01–0.09[b]					252.3[8]
HCFC	R-222c	1,1,1,3,3-Pentachloro-2,2-difluoropropane	C3HF2Cl5	422-49-1		0.01–0.09[16]					252.3[8]
HCFC	R-223	Tetrachlorotrifluoropropane	C3HF3Cl4	134237-37-9		0.01–0.08[b]					235.8[8]
HCFC	R-223ca	1,1,3,3-Tetrachloro-1,2,2-trifluoropropane	C3HF3Cl4	422-52-6		0.01–0.08[16]					235.8[8]
HCFC	R-223cb	1,1,1,3-Tetrachloro-2,2,3-trifluoropropane	C3HF3Cl4	422-50-4		0.01–0.08[b]					235.8[8]
HCFC	R-224	Trichlorotetrafluoropropane	C3HF4Cl3	134237-38-0		0.01–0.09[b]					219.4[8]
HCFC	R-224ca	1,3,3-Trichloro-1,1,2,2-tetrafluoropropane	C3HF4Cl3	422-54-8		0.01–0.09[16]					219.4[8]
HCFC	R-224cb	1,1,3-Trichloro-1,2,2,3-tetrafluoropropane	C3HF4Cl3	422-53-7		0.01–0.09[b]					219.4[8]
HCFC	R-224cc	1,1,1-Trichloro-2,2,3,3-tetrafluoropropane	C3HF4Cl3	422-51-5		0.01–0.09[b]					219.4[8]
HCFC	R-225	Dichloropentafluoropropane	C3HF5Cl2	127564-92-5		0.01–0.05[b]					202.9[8]
HCFC	R-225aa	2,2-Dichloro-1,1,1,3,3-pentafluoropropane	C3HF5Cl2	128903-21-9		0.01–0.05[b]					202.9[8]
HCFC	R-225ba	2,3-Dichloro-1,1,1,2,3-pentafluoropropane	C3HF5Cl2	422-48-0		0.01–0.05[b]					202.9[8]
HCFC	R-225bb	1,2-Dichloro-1,1,2,3,3-pentafluoropropane	C3HF5Cl2	422-44-6		0.01–0.05[b]					202.9[8]
HCFC	R-225ca	3,3-Dichloro-1,1,1,2,2-pentafluoropropane	C3HF5Cl2	422-56-0	1.9[3][4]	0.02[4]	127[6]				202.9[8]
HCFC	R-225cb	1,3-Dichloro-1,1,2,2,3-pentafluoropropane	C3HF5Cl2	507-55-1	5.8[3][4]	0.03[4]	525[6]				202.9[8]
HCFC	R-225cc	1,1-Dichloro-1,2,2,3,3-pentafluoropropane	C3HF5Cl2	13474-88-9		0.01–0.05[b]					202.9[8]
HCFC	R-225da	1,2-Dichloro-1,1,3,3,3-pentafluoropropane	C3HF5Cl2	431-86-7		0.01–0.05[b]					202.9[8]
HCFC	R-225ea	1,3-Dichloro-1,1,2,3,3-pentafluoropropane	C3HF5Cl2	136013-79-1		0.01–0.05[b]					202.9[8]
HCFC	R-225eb	1,1-Dichloro-1,2,3,3,3-pentafluoropropane	C3HF5Cl2	111512-56-2		0.01–0.05[b]					202.9[8]
HCFC	R-226	Chlorohexafluoropropane	C3HF6Cl	134308-72-8		0.02–0.1[b]					186.5[8]
HCFC	R-226ba	2-Chloro-1,1,1,2,3,3-hexafluoropropane	C3HF6Cl	51346-64-6		0.02–0.1[b]					186.5[8]
HCFC	R-226ca	3-Chloro-1,1,1,2,2,3-hexafluoropropane	C3HF6Cl	422-57-1		0.02–0.1[b]					186.5[8]
HCFC	R-226cb	1-Chloro-1,1,2,2,3,3-hexafluoropropane	C3HF6Cl	422-55-9		0.02–0.1[b]					186.5[8]
HCFC	R-226da	2-Chloro-1,1,1,3,3,3-hexafluoropropane	C3HF6Cl	431-87-8		0.02–0.1[16]					186.5[8]
HCFC	R-226ea	1-Chloro-1,1,2,3,3,3-hexafluoropropane	C3HF6Cl	359-58-0		0.02–0.1[b]					186.5[8]
HFC	R-227ca	1,1,2,2,3,3,3-Heptafluoropropane	C3HF7	2252-84-8		0[d]					170[8]
HFC	R-227ca2	Trifluoromethyl 1,1,2,2-tetrafluoroethyl ether	C3HF7O	2356-61-8		0[d]					186[8]
HFC	R-227ea	1,1,1,2,3,3,3-Heptafluoropropane	C3HF7	431-89-0	34.2[3]	0[15][18]	3,350[6]	1,000[12] A1[12]	84,000[12]	580[12]	170[8]	−16.4[9]	102.8[10]	2,980[10]
HFC	R-227me	Trifluoromethyl 1,2,2,2-tetrafluoroethyl ether	C3HF7O	2356-62-9	11[4]	0[d]	1,540[4]				186[8]
HCFC	R-231	Pentachlorofluoropropane	C3H2FCl5	134190-48-0		0.05–0.09[16]					234.3[8]
HCFC	R-232	Tetrachlorodifluoropropane	C3H2F2Cl4	134237-39-1		0.008–0.1[16]					217.9[8]
HCFC	R-232ca	1,1,3,3-Tetrachloro-2,2-difluoropropane	C3H2F2Cl4	1112-14-7		0.008–0.1[b]					217.9[8]
HCFC	R-232cb	1,1,1,3-Tetrachloro-2,2-difluoropropane	C3H2F2Cl4	677-54-3		0.008–0.1[b]					217.9[8]
HCFC	R-233	Trichlorotrifluoropropane	C3H2F3Cl3	134237-40-4		0.007–0.23[16]					201.4[8]
HCFC	R-233ca	1,1,3-Trichloro-2,2,3-trifluoropropane	C3H2F3Cl3	131221-36-8		0.007–0.23[b]					201.4[8]
HCFC	R-233cb	1,1,3-Trichloro-1,2,2-trifluoropropane	C3H2F3Cl3	421-99-8		0.007–0.23[b]					201.4[8]
HCFC	R-233cc	1,1,1-Trichloro-2,2,3-trifluoropropane	C3H2F3Cl3	131211-71-7		0.007–0.23[b]					201.4[8]
HCFC	R-234	Dichlorotetrafluoropropane	C3H2F4Cl2	127564-83-4		0.01–0.28[b]					184.9[8]
HCFC	R-234aa	2,2-Dichloro-1,1,3,3-tetrafluoropropane	C3H2F4Cl2	17705-30-5		0.01–0.28[b]					184.9[8]
HCFC	R-234ab	2,2-Dichloro-1,1,1,3-tetrafluoropropane	C3H2F4Cl2	149329-24-8		0.01–0.28[b]					184.9[8]
HCFC	R-234ba	1,2-Dichloro-1,2,3,3-tetrafluoropropane	C3H2F4Cl2	425-94-5		0.01–0.28[16]					184.9[8]
HCFC	R-234bb	2,3-Dichloro-1,1,1,2-tetrafluoropropane	C3H2F4Cl2	149329-25-9		0.01–0.28[b]					184.9[8]
HCFC	R-234bc	1,2-Dichloro-1,1,2,3-tetrafluoropropane	C3H2F4Cl2	149329-26-0		0.01–0.28[b]					184.9[8]
HCFC	R-234ca	1,3-Dichloro-1,2,2,3-tetrafluoropropane	C3H2F4Cl2	70341-81-0		0.01–0.28[b]					184.9[8]
HCFC	R-234cb	1,1-Dichloro-2,2,3,3-tetrafluoropropane	C3H2F4Cl2	4071-01-6		0.01–0.28[b]					184.9[8]
HCFC	R-234cc	1,3-Dichloro-1,1,2,2-tetrafluoropropane	C3H2F4Cl2	422-00-4		0.01–0.28[b]					184.9[8]
HCFC	R-234cd	1,1-Dichloro-1,2,2,3-tetrafluoropropane	C3H2F4Cl2	70192-63-1		0.01–0.28[b]					184.9[8]
HCFC	R-234da	2,3-Dichloro-1,1,1,3-tetrafluoropropane	C3H2F4Cl2	146916-90-7		0.01–0.28[b]					184.9[8]
HCFC	R-234fa	1,3-Dichloro-1,1,3,3-tetrafluoropropane	C3H2F4Cl2	76140-39-1		0.01–0.28[b]					184.9[8]
HCFC	R-234fb	1,1-Dichloro-1,3,3,3-tetrafluoropropane	C3H2F4Cl2	64712-27-2		0.01–0.28[b]					184.9[8]
HCFC	R-235	Chloropentafluoropropane	C3H2F5Cl	134237-41-5		0.03–0.52[16]					168.5[8]
HCFC	R-235ca	1-Chloro-1,2,2,3,3-pentafluoropropane	C3H2F5Cl	28103-66-4		0.03–0.52[b]					168.5[8]
HCFC	R-235cb	3-Chloro-1,1,1,2,3-pentafluoropropane	C3H2F5Cl	422-02-6		0.03–0.52[b]					168.5[8]
HCFC	R-235cc	1-Chloro-1,1,2,2,3-pentafluoropropane	C3H2F5Cl	679-99-2		0.03–0.52[b]					168.5[8]
HCFC	R-235da	2-Chloro-1,1,1,3,3-pentafluoropropane	C3H2F5Cl	134251-06-2		0.03–0.52[b]					168.5[8]
HCFC	R-235fa	1-Chloro-1,1,3,3,3-pentafluoropropane	C3H2F5Cl	677-55-4		0.03–0.52[b]					168.5[8]
HFC	R-236cb	1,1,1,2,2,3-Hexafluoropropane	C3H2F6	677-56-5	13.6[3]	0[d]	1,210[6]				152[8]	−1.5
HFC	R-236ea	1,1,1,2,3,3-Hexafluoropropane	C3H2F6	431-63-0	10.7[3]	0[15]	1,330[6]				152[8]		139.29[10]	3,502[10]
HFC	R-236fa	1,1,1,3,3,3-Hexafluoropropane	C3H2F6	690-39-1	240[3]	0[15]	8,060[6]	1,000[12] A1[12]	55,000[12]	340[12]	152[8]	−1.05±.35[9]	124.92[10]	3,200[10]
HFC	R-236me	1,2,2,2-Tetrafluoroethyl difluoromethyl ether	C3H2F6O	57041-67-5	5.8[4]	0[d]	989[4]				168[8]
HCFC	R-241	Tetrachlorofluoropropane	C3H3FCl4	134190-49-1		0.004–0.09[16]					199.9[8]
HCFC	R-242	Trichlorodifluoropropane	C3H3F2Cl3	134237-42-6		0.005–0.13[16]					183.4[8]
HCFC	R-243	Dichlorotrifluoropropane	C3H3F3Cl2	134237-43-7		0.007–0.12[16]					167[8]
HCFC	R-243ca	1,3-Dichloro-1,2,2-trifluoropropane	C3H3F3Cl2	67406-68-2		0.007–0.12[b]					167[8]
HCFC	R-243cb	1,1-Dichloro-2,2,3-trifluoropropane	C3H3F3Cl2	70192-70-0		0.007–0.12[b]					167[8]
HCFC	R-243cc	1,1-Dichloro-1,2,2-trifluoropropane	C3H3F3Cl2	7125-99-7		0.007–0.12[b]					167[8]
HCFC	R-243da	2,3-Dichloro-1,1,1-trifluoropropane	C3H3F3Cl2	338-75-0		0.007–0.12[b]					167[8]
HCFC	R-243ea	1,3-Dichloro-1,2,3-trifluoropropane	C3H3F3Cl2	151771-08-3		0.007–0.12[b]					167[8]
HCFC	R-243ec	1,3-Dichloro-1,1,2-trifluoropropane	C3H3F3Cl2	149329-27-1		0.007–0.12[b]					167[8]
HCFC	R-244	Chlorotetrafluoropropane	C3H3F4Cl	134190-50-4		0.009–0.14[16]					150.5[8]
HCFC	R-244ba	2-Chloro-1,2,3,3-tetrafluoropropane	C3H3F4Cl	149329-28-2		0.009–0.14[b]					150.5[8]
HCFC	R-244bb	2-Chloro-1,1,1,2-tetrafluoropropane	C3H3F4Cl	421-73-8		0.009–0.14[b]					150.5[8]
HCFC	R-244ca	3-Chloro-1,1,2,2-tetrafluoropropane	C3H3F4Cl	679-85-6		0.009–0.14[b]					150.5[8]
HCFC	R-244cb	1-Chloro-1,2,2,3-tetrafluoropropane	C3H3F4Cl	67406-66-0		0.009–0.14[b]					150.5[8]
HCFC	R-244cc	1-Chloro-1,1,2,2-tetrafluoropropane	C3H3F4Cl	421-75-0		0.009–0.14[b]					150.5[8]
HCFC	R-244da	2-Chloro-1,1,3,3-tetrafluoropropane	C3H3F4Cl	19041-02-2		0.009–0.14[b]					150.5[8]
HCFC	R-244db	2-Chloro-1,1,1,3-tetrafluoropropane	C3H3F4Cl	117970-90-8		0.009–0.14[b]					150.5[8]
HCFC	R-244ea	3-Chloro-1,1,2,3-tetrafluoropropane	C3H3F4Cl			0.009–0.14[b]					150.5[8]
HCFC	R-244eb	3-Chloro-1,1,1,2-tetrafluoropropane	C3H3F4Cl	151771-09-4		0.009–0.14[b]					150.5[8]
HCFC	R-244ec	1-Chloro-1,1,2,3-tetrafluoropropane	C3H3F4Cl	149448-09-9		0.009–0.14[b]					150.5[8]
HCFC	R-244fa	3-Chloro-1,1,1,3-tetrafluoropropane	C3H3F4Cl	149329-29-3		0.009–0.14[b]					150.5[8]
HCFC	R-244fb	1-Chloro-1,1,3,3-tetrafluoropropane	C3H3F4Cl	2730-64-5		0.009–0.14[b]					150.5[8]
HFC	R-245ca	1,1,2,2,3-Pentafluoropropane	C3H3F5	679-86-7	6.2[3]	0[15]	716[6]				134[8]		174.42[10]	3,925[10]
HFC	R-245cb	Pentafluoropropane	C3H3F5	1814-88-6		0[d]					134[8]
HFC	R-245ea	1,1,2,3,3-Pentafluoropropane	C3H3F5	24270-66-4		0[d]					134[8]
HFC	R-245eb	1,1,1,2,3-Pentafluoropropane	C3H3F5	431-31-2		0[d]					134[8]
HFC	R-245fa	1,1,1,3,3-Pentafluoropropane	C3H3F5	460-73-1	7.6[3]	0[15][18]	858[6]	300[12] B1[12]	34,000[12]	190[12]	134[8]	15[20]	154.05[10]	3,640[10]
HFC	R-245mc	Methyl pentafluoroethyl ether	C3H3F5O	22410-44-2		0[d]					150[8]
HFC	R-245mf	Difluoromethyl 2,2,2-trifluoroethyl ether	C3H3F5O	1885-48-9	2.2[4]	0[d]	286[4]				150[8]
HFC	R-245qc	Difluoromethyl 1,1,2-trifluoroethyl ether	C3H3F5O	69948-24-9		0[d]					150[8]
HCFC	R-251	Trichlorofluoropropane	C3H4FCl3	134190-51-5		0.001–0.01[16]					165.4[8]
HCFC	R-252	Dichlorodifluoropropane	C3H4F2Cl2	134190-52-6		0.005–0.04[16]					149[8]
HCFC	R-252ca	1,3-Dichloro-2,2-difluoropropane	C3H4F2Cl2	1112-36-3		0.005–0.04[b]					149[8]
HCFC	R-252cb	1,1-Dichloro-2,2-difluoropropane	C3H4F2Cl2	1112-01-2		0.005–0.04[b]					149[8]
HCFC	R-252dc	1,2-Dichloro-1,1-difluoropropane	C3H4F2Cl2	7126-15-0		0.005–0.04[b]					149[8]
HCFC	R-252ec	1,1-Dichloro-1,2-difluoropropane	C3H4F2Cl2	151771-10-7		0.005–0.04[b]					149[8]
HCFC	R-253	Chlorotrifluoropropane	C3H4F3Cl	134237-44-8		0.003–0.03[16]					132.5[8]
HCFC	R-253ba	2-Chloro-1,2,3-trifluoropropane	C3H4F3Cl	151771-11-8		0.003–0.03[b]					132.5[8]
HCFC	R-253bb	2-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	69202-10-4		0.003–0.03[b]					132.5[8]
HCFC	R-253ca	1-Chloro-2,2,3-trifluoropropane	C3H4F3Cl	56758-54-4		0.003–0.03[b]					132.5[8]
HCFC	R-253cb	1-Chloro-1,2,2-trifluoropropane	C3H4F3Cl	70192-76-6		0.003–0.03[b]					132.5[8]
HCFC	R-253ea	3-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	121612-65-5		0.003–0.03[b]					132.5[8]
HCFC	R-253eb	1-Chloro-1,2,3-trifluoropropane	C3H4F3Cl	151771-12-9		0.003–0.03[b]					132.5[8]
HCFC	R-253ec	1-Chloro-1,1,2-trifluoropropane	C3H4F3Cl	134251-05-1		0.003–0.03[b]					132.5[8]
HCFC	R-253fa	3-Chloro-1,3,3-trifluoropropane	C3H4F3Cl			0.003–0.03[b]					132.5[8]
HCFC	R-253fb	3-Chloro-1,1,1-trifluoropropane	C3H4F3Cl	460-35-5		0.003–0.03[b]					132.5[8]
HCFC	R-253fc	1-Chloro-1,1,3-trifluoropropane	C3H4F3Cl	83124-56-5		0.003–0.03[b]					132.5[8]
HFC	R-254cb	1,1,2,2-Tetrafluoropropane	C3H4F4	40723-63-5		0[d]					116.1[8]
HFC	R-254pc	Methyl 1,1,2,2-tetrafluoroethyl ether	C3H4F4O	425-88-7	2.6[3]	0[d]	359[3]				132.1[8]
HCFC	R-261	Dichlorofluoropropane	C3H5FCl2	134237-45-9		0.002–0.02[b]					131[8]
HCFC	R-261ba	1,2-Dichloro-2-fluoropropane	C3H5FCl2	420-97-3		0.002–0.02[16]					131[8]
HCFC	R-262	Chlorodifluoropropane	C3H5F2Cl	134190-53-7		0.002–0.02[16]					114.5[8]
HCFC	R-262ca	1-Chloro-2,2-difluoropropane	C3H5F2Cl	420-99-5		0.002–0.02[b]					114.5[8]
HCFC	R-262fa	3-Chloro-1,1-difluoropropane	C3H5F2Cl	83124-57-6		0.002–0.02[b]					114.5[8]
HCFC	R-262fb	1-Chloro-1,3-difluoropropane	C3H5F2Cl	151771-13-0		0.002–0.02[b]					114.5[8]
HFC	R-263	Trifluoropropane	C3H5F3	94458-05-6		0[d]					98.1[8]
HCFC	R-271	Chlorofluoropropane	C3H6FCl	134190-54-8		0.001–0.03[16]					96.5[8]
HCFC	R-271b	2-Chloro-2-fluoropropane	C3H6FCl	420-44-0		0.001–0.03[b]					96.5[8]
HCFC	R-271d	2-Chloro-1-fluoropropane	C3H6FCl	20372-78-5		0.001–0.03[b]					96.5[8]
HCFC	R-271fb	1-Chloro-1-fluoropropane	C3H6FCl	430-55-7		0.001–0.03[b]					96.5[8]
HFC	R-272	Difluoropropane	C3H6F2	94458-04-5		0[d]					80.1[8]
HFC	R-281	Fluoropropane	C3H7F	106857-11-8		0[d]					62.1[8]
HC	R-290	Propane	C3H8 or CH3CH2CH3	74-98-6	13 days[23]	< 0(smog)[e]	3.3[3]–9.5[23]	1,000[12] A3[12]	5,300[12]	9.5[12]	44.1[8]	−42.1±.2[9]	96.7[10]	4,248[10]
CFC	R-C316	Dichlorohexafluorocyclobutane	C4Cl2F6	356-18-3	74.6 ± 3(E),114.1 ± 10 (Z)[25]	0.40(E), 0.49(Z)[25]	4,160(E), 5,400(Z)[25]				232.9[8]
CFC	R-C317	Chloroheptafluorocyclobutane	C4ClF7	377-41-3							216.5[8]
PFC	R-C318	Octafluorocyclobutane (Perfluorocyclobutane)	C4F8 or -(CF2)4-	115-25-3	3,200[3]	0[15]	10,300[3]	1,000[12] A1[12]	69,000[12]	570[12]	200[8]	−6[9][20]	115.23[10]	2,777[10]
PFC	R-3-1-10	Decafluorobutane (Perfluorobutane)	C4F10	355-25-9	2,600[3]	0[15]	8,860[3]				238[8]	−1.7[9]
HFC	R-329ccb	1,1,1,2,2,3,3,4,4-Nonafluorobutane	C4HF9	375-17-7		0[d]					220[8]
HFC	R-338eea	1,1,1,2,3,4,4,4-Octafluorobutane	C4H2F8	75995-72-1		0[d]					202[8]
HFC	R-347ccd	1,1,1,2,2,3,3-Heptafluorobutane	C4H3F7	662-00-0		0[d]					184.1[8]
HFC	R-347mcc	Perfluoropropyl methyl ether	C4H3F7O	375-03-1	5.2[3]	0[d]	575[3]				200.1[8]
HFC	R-347mmy	Perfluoroisopropyl methyl ether	C4H3F7O	22052-84-2	3.4[4]	0[d]	343[4]				200.1[8]
HFC	R-365mfc	1,1,1,3,3-Pentafluorobutane	C4H5F5	406-58-6	8.6[3]	0[15][18]	804[3]				148.1[8]
PFC	R-4-1-12	Dodecafluoropentane (Perfluoropentane)	C5F12	678-26-2	4,100[3]	0[15]	9,160[3]				288[8]
PFC	R-5-1-14	Tetradecafluorohexane (Perfluorohexane)	C6F14	355-42-0	3,200[3]	0[15]	9,300[3]				338[8]	56[9]
CFC	R-400	R-12/114(50/50 wt%) OR (60/40)(must be specified)	50% CCl2F2 · 50% C2F4Cl2 OR 60% CCl2F2 · 40% C2F4Cl2		200[note 1] OR 180[note 1]	1.0[note 2]	10,450[note 1] 10,540[note 1]	1,000[12] A1[12] 1,000[12] A1[12]	28,000[12] 30,000[12]	160[12] 170[12]	141.6[8] 136.9[8]
HCFC	R-401A	R-22/152a/124 (53±2/13+.5,-1.5/34±1)	53±2% CHClF2 · 13+.5,-1.5% C2H4F2 · 34±1% C2HF4Cl	MP-39[10][27]	8.514[note 1]	0.03398[note 2]	1,182[note 1]	1,000[12] A1[12]	27,000[12]	110[12]	94.4[8]	−34.4/−28.8[20]	105.27[10]	4,613[10]
HCFC	R-401B	R-22/152a/124 (61±2/11+.5,-1.5/28±1)	61±2% CHClF2 · 11+.5,-1.5% C2H4F2 · 28±1% C2HF4Cl	MP-66[10][27]	9.098[note 1]	0.03666[note 2]	1,288[note 1]	1,000[12] A1[12]	30,000[12]	120[12]	92.8[8]	−35.7/−30.8[20]	103.54[10]	4,682[10]
HCFC	R-401C	R-22/152a/124 (33±2/15+.5,-1.5/52±1)	33±2% CHClF2 · 15+.5,-1.5% C2H4F2 · 52±1% C2HF4Cl	MP-52[27]	7.186[note 1]	0.02794[note 2]	933[note 1]	1,000[12] A1[12]	20,000[12]	84[12]	101[8]	−30.5/−23.8[20]
HCFC	R-402A	R-125/290/22 (60±2/2±1/38±2)	60±2% C2HF5 · 2±1% C3H8 · 38±2%  CHClF2	HP-80[10][27]	22.2?[note 1]	0.019[note 2]	2,788[note 1]	1,000[12] A1[12]	33,000[12]	140[12]	101.5[8]	−49.2/−47.0[20]	76.03[10]	4,234[10]
HCFC	R-402B	R-125/290/22 (38±2/2±1/60±2)	38±2% C2HF5 · 2±1% C3H8 · 60±2% CHClF2	HP-81[10][27]	18.46?[note 1]	0.03[note 2]	2,416[note 1]	1,000[12] A1[12]	63,000[12]	240[12]	94.7[8]	−47.2/−44.9[20]	83.03[10]	4,525[10]
HCFC	R-403A	R-290/22/218 (5+.2,-2/75±2/20±0)	5+.2,-2% C3H8 · 75±2% CHClF2 · 20±0% C3F8	ISCEON 69-S[10]	529.6?[note 1]	0.0375[note 2]	3,124[note 1]	1,000[12] A2[28]	33,000[12]	120[12]	92[8]	−44.0/−42.3[20]	91.22[10]	4,688[10]
HCFC	R-403B	R-290/22/218 (5+.2,-2/56±2/39±0)	5+.2,-2% C3H8 · 56±2% CHClF2 · 39±0% C3F8	ISCEON 69-L[10]	1,021.32?[note 1]	0.028[note 2]	4,457[note 1]	1,000[12] A1[12]	70,000[12]	290[12]	103.3[8]	−43.8/−42.3[20]	88.72[10]	4,399[10]
HFC	R-404A	R-125/143a/134a (44±2/52±1/4±2)	44±2% C2HF5 · 52±1% C2H3F3 · 4±2% C2H2F4	HP-62,[10][27] FX-70[10][27]	40.36[note 1]	0[note 2]	3,922[note 1]	1,000[12] A1[12]	130,000[12]	500[12]	97.6[8]	−46.6/−45.8[20]	72.14[10]	3,735[10]
HCFC	R-405A	R-22/152a/142b/C318 (45±0/7±1/5.5±1/42.5±2)	45±0% CHClF2 · 7±1% C2H4F2 · 5.5±1% C2H3F2Cl · 42.5±2% C4F8	GREENCOOL G2015[10]	1,366.4825[note 1]	0.02635[note 2]	5,328[note 1]	1,000[12] A1?	57,000[12]	260[12]	111.9[8]	−32.9/−24.5[20]	106[10]	4,289[10]
HCFC	R-406A	R-22/600a/142b (55±2/4±1/41±0)	55±2% CHClF2 · 4±1% C4H10 · 41±0% C2H3F2Cl	GHG[10][27]	14.419?[note 1]	0.0562[note 2]	1,943[note 1]	1,000[12] A2[12]	21,000[12]	25[12]	89.9[8]	−32.7/−23.5[20]	116.5[10]	4,881[10]
HCFC	R-406B	R-22/600a/142b (65±2/4±1/31±0)	65±2% CHClF2 · 4±1% C4H10 · 31±0% C2H3F2Cl	GHG-HP[10]	13.829?[note 1]	0.0542[note 2]	1,893[note 1]	1,000? A2?	21,000?	25?	88.6[8]
HFC	R-407A	R-32/125/134a (20±2/40±2/40±2)	20±2% CH2F2 · 40±2% C2HF5 · 40±2% C2H2F4	Klea 60[10][27]	18.18[note 1]	0[note 2]	2,107[note 1]	1,000[12] A1[12]	83,000[29]	300[29]	90.1[8]	−45.2/−38.7[20]	81.91[10]	4,487[10]
HFC	R-407B	R-32/125/134a (10±2/70±2/20±2)	10±2% CH2F2 · 70±2% C2HF5 · 20±2% C2H2F4	Klea 61[10]	23.59[note 1]	0[note 2]	2,804[note 1]	1,000[12] A1[12]	79,000[29]	330[29]	102.9[8]	−46.8/−42.4[20]	74.38[10]	4,083[10]
HFC	R-407C	R-32/125/134a (23±2/25±2/52±2)	23±2% CH2F2 · 25±2% C2HF5 · 52±2% C2H2F4	Klea 66,[10] AC9000[27]	15.657[note 1]	0[note 2]	1,774[note 1]	1,000[12] A1[12]	81,000[29]	290[29]	86.2[8]	−43.8/−36.7[20]	86.05[10]	4,634[10]
HFC	R-407D	R-32/125/134a (15±2/15±2/70±2)	15±2% CH2F2 · 15±2% C2HF5 · 70±2% C2H2F4		14.885[note 1]	0[note 2]	1,627[note 1]	1,000[12] A1[12]	68,000[29]	250[29]	91[8]	−39.4/−32.7[20]	91.57[10]	4,483[10]
HFC	R-407E	R-32/125/134a (25±2/15±2/60±2)	25±2% CH2F2 · 15±2% C2HF5 · 60±2% C2H2F4		13.975[note 1]	0[note 2]	1,552[note 1]	1,000[12] A1[12]	80,000[29]	280[29]	83.8[8]	−42.8/−35.6[20]	88.77[10]	4,734[10]
HFC	R-407F	R-32/125/134a (30±2/30±2/40±2)	30±2% CH2F2 · 30±2% C2HF5 · 40±2% C2H2F4	Genetron Performax LT[27]	15.77[note 1]	0[note 2]	1,825[note 1]	1,000[30] A1[30]	95,000[29]	320[29]	82.1[8]	−46.1/−39.7[30]
HCFC	R-408A	R-125/143a/22 (7±2/46±1/47±2)	7±2% C2HF5 · 46±1% C2H3F3 · 47±2% CHClF2	FX-10[10][27]	31.59[note 1]	0.0235[note 2]	3,152[note 1]	1,000[12] A1[12]	95,000[12]	340[12]	87[8]	−45.5/−45.0[20]	83.5[10]	4,340[10]
HCFC	R-409A	R-22/124/142b (60±2/25±2/15±1)	60±2% CHClF2 · 25±2% C2HF4Cl · 15±1% C2H3F2Cl	FX-56[10][27]	11.335[note 1]	0.046[note 2]	1,585[note 1]	1,000[12] A1[12]	29,000[12]	110[12]	97.4[8]	−35.4/−27.5[20]	106.92[10]	4,600[10]
HCFC	R-409B	R-22/124/142b (65±2/25±2/10±1)	65±2% CHClF2 · 25±2% C2HF4Cl · 10±1% C2H3F2Cl	FX-57[10]	11.04[note 1]	0.045[note 2]	1,560[note 1]	1,000[12] A1[12]	30,000[12]	120[12]	96.7[8]	−36.5/−29.7[20]	104.36[10]	4,711[10]
HFC	R-410A	R-32/125 (50+.5,–1.5/50+1.5,–.5)	50+.5,–1.5% CH2F2 · 50+1.5,–.5% CHF2CF3[31]	AZ-20,[10] Puron,[10] Suva 9100[10]	16.95[note 1]	0[note 2]	2,088[note 1]	1,000[12] A1[12]	140,000[29]	420[29]	72.6[8]	−51.6/−51.5[20]	70.17[10]	4,770[10]
HFC	R-410B	R-32/125 (45±1/55±1)	45±1% CH2F2 · 55±1% CHF2CF3[31]	AC9100[27]	18.155[note 1]	0[note 2]	2,229[note 1]	1,000? A1[12]	140,000[29]	430[29]	75.6[8]	−51.5/−51.4[20]
HCFO	R-411A	R-1270/22/152a (1.5+0,–1/87.5+2,–0/11+0,–1)	1.5+0,–1% C3H6 · 87.5+2,–0% CHClF2 · 11+0,–1% C2H4F2	GREENCOOL G2018a[10]	10.834[note 1]	0.04375[note 2]	1,597[note 1]	990[12] A2[12]	14,000[12]	46[12]	82.4[8]	−39.7/−37.2[20]	99.06[10]	4,954[10]
HCFO	R-411B	R-1270/22/152a (3+0,–1/94+2,–0/3+0,–1)	3+0,–1% C3H6 · 94+2,–0% CHClF2 · 3+0,–1% C2H4F2	GREENCOOL G2018b[10]	11.682[note 1]	0.047[note 2]	1,705[note 1]	980[12] A2[12]	13,000[12]	45[12]	83.1[8]	−41.6/−41.3[20]	95.95[10]	4,947[10]
HCFO	R-411C	R-1270/22/152a (3+0,–1/95.5+2,–0/1.5+0,–1)	3+0,–1% C3H6 · 95.5+2,–0% CHClF2 · 1.5+0,–1% C2H4F2	GREENCOOL G2018c[10]	11.841[note 1]	0.04775[note 2]	1,730[note 1]	970? A2?	12,000?	44?	83.4[8]		95.5[10]	4,950[10]
HCFC	R-412A	R-22/218/142b (70±2/5±2/25±1)	70±2% CHClF2 · 5±2% C3F8 · 25±1% C2H3F2Cl	Arcton TP5R[10]	142.875[note 1]	0.0525[note 2]	2,286[note 1]	1,000[12] A2[12]	22,000[12]	82[12]	92.2[8]	−36.4/−28.8[20]	107.5[10]	4,881[10]
HFC	R-413A	R-218/134a/600a (9±1/88±2/3+0,–1)	9±1% C3F8 · 88±2% C2H2F4 · 3+0,–1% C4H10	ISCEON 49[10]	246.68?[note 1]	0[note 2]	2,053[note 1]	1,000[12] A2[12]	22,000[12]	94[12]	104[8]	−29.3/−27.6[20]	101.39[10]	4,240[10]
HCFC	R-414A	R-22/124/600a/142b (51±2/28.5±2/4±.5/16.5+.5,–1)	51±2% CHClF2 · 28.5±2% C2HF4Cl · 4±.5% C4H10 · 16.5+.5,–1% C2H3F2Cl	GHG-X4,[10] Autofrost,[10] Chill-It[10]	11.2065?[note 1]	0.04332[note 2]	1,478[note 1]	1,000[12] A1[12]	26,000[12]	100[12]	96.9[8]	−34.0/−25.8[20]	110.72[10]	4,702[10]
HCFC	R-414B	R-22/124/600a/142b (50±2/39±2/1.5±.5/9.5+.5,–1)	50±2% CHClF2 · 39±2% C2HF4Cl · 1.5±.5% C4H10 · 9.5+.5,–1% C2H3F2Cl	Hot Shot,[10][27] Kar Kool[10]	10.1425?[note 1]	0.04023[note 2]	1,362[note 1]	1,000[12] A1[12]	23,000[12]	95[12]	101.5[8]	−34.4/−26.1[20]	108[10]	4,592[10]
HCFC	R-415A	R-22/152a (82±1/18±1)	82±1% CHClF2 · 18±1% C2H4F2		10.092[note 1]	0.041[note 2]	1,507[note 1]	1,000[12] A2[12]	57,000[12]	190[12]	81.9[8]	−37.5/−34.7[20]
HCFC	R-415B	R-22/152a (25±1/75±1)	25±1% CHClF2 · 75±1% C2H4F2		4.05[note 1]	0.0125[note 2]	546[note 1]	1,000[12] A2[12]	52,000[12]	120[12]	70.2[8]	−23.4/−21.8[20]
HCFC	R-416A	R-134a/124/600 (59+.5,–1/39.5+1,–.5/1.5+1,–.2)	59+.5,-1% C2H2F4 · 39.5+1,–.5% C2HF4Cl · 1.5+1,–.2% C4H10	FRIGC (FR-12)[10]	10.731?[note 1]	0.00869[note 2]	1,084[note 1]	1,000[12] A1[12]	14,000[12]	62[12]	111.9[8]	−38.0/−32.9[20]	108.22[10]	4,020[10]
HFC	R-417A	R-125/134a/600 (46.6±1.1/50±1/3.4+.1,–.4)	46.6±1.1% C2HF5 · 50±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON 59,[10] NU-22[10]	20.922?[note 1]	0[note 2]	2,346[note 1]	1,000[12] A1[12]	13,000[12]	56[12]	106.7[8]	−41.2/−40.1[20]	89.89[10]	4,102[10]
HFC	R-417B	R-125/134a/600 (79±1/18.3±1/2.7+.1,–.5)	79±1% C2HF5 · 18.3±1% C2H2F4 · 2.7+.1,–.5% C4H10		25.796?[note 1]	0[note 2]	3,027[note 1]	1,000[30] A1[30]	15,000[30]	70[30]	113.1[8]	−44.9/−41.5[30]
HCFC	R-418A	R-290/22/152a (1.5±.5/96±1/2.5±.5)	1.5±.5% C3H8 · 96±1% CHClF2 · 2.5±.5% C2H4F2		11.735?[note 1]	0.048[note 2]	1,741[note 1]	1,000[12] A2[12]	59,000[12]	200[12]	84.6[8]	−42.6/−36.0[20]
HFC	R-419A	R-125/134a/E170 (77±1/19±1/4±1)	77±1% C2HF5 · 19±1% C2H2F4 · 4±1% C2H6O		24.9906[note 1]	0[note 2]	2,967[note 1]	1,000[12] A2[12]	70,000[12]	310[12]	109.3[8]	−25.0/−24.2[20]
HCFC	R-420A	R-134a/142b (88+1,–0/12+0,–1)	88+1,–0% C2H2F4 · 12+0,–1% C2H3F2Cl	Choice Refrigerant[27]	14.468[note 1]	0.0084[note 2]	1,548[note 1]	1,000[12] A1[12]	45,000[12]	190[12]	101.8[8]	−34.4/−28.8[20]
HFC	R-421A	R-125/134a (58±1/42±1)	58±1% C2HF5 · 42±1% C2H2F4	Choice R421A[27]	22.7[note 1]	0[note 2]	2,631[note 1]	1,000[12] A1[12]	61,000[12]	280[12]	111.7[8]
HFC	R-421B	R-125/134a (85±1/15±1)	85±1% C2HF5 · 15±1% C2H2F4	Choice 421B[27]	26.75[note 1]	0[note 2]	3,190[note 1]	1,000[12] A1[12]	69,000[12]	330[12]	116.9[8]
HFC	R-422A	R-125/134a/600a (85.1±1/11.5±1/3.4+.1,–.4)	85.1±1% C2HF5 · 11.5±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON 79[27]	26.697?[note 1]	0[note 2]	3,143[note 1]	1,000[12] A1[12]	63,000[12]	290[12]	113.6[8]
HFC	R-422B (NU-22B)	R-125/134a/600a (55±1/42±1/3+.1,–.5)	55±1% C2HF5 · 42±1% C2H2F4 · 3+.1,–.5% C4H10	ICOR XAC1[27]	22.19?[note 1]	0[note 2]	2,526[note 1]	1,000[12] A1[12]	56,000[12]	250[12]	108.5[8]
HFC	R-422C	R-125/134a/600a (82±1/15±1/3+.1,–.5)	82±1% C2HF5 · 15±1% C2H2F4 · 3+.1,–.5% C4H10	ICOR XLT1[27]	26.24?[note 1]	0[note 2]	3,085[note 1]	1,000[12] A1[12]	62,000[12]	290[12]	113.4[8]
HFC	R-422D	R-125/134a/600a (65.1+.9,–1.1/31.5±1/3.4+.1,–.4)	65.1+.9,–1.1% C2HF5 · 31.5±1% C2H2F4 · 3.4+.1,–.4% C4H10	ISCEON MO29[27]	23.697?[note 1]	0[note 2]	2,729[note 1]	1,000[12] A1[12]	58,000[12]	260[12]	109.9[8]
HFC	R-423A	R-134a/227ea (52.5±1/47.5±1)	52.5±1% C2H2F4 · 47.5±1% C3HF7		23.595[note 1]	0[note 2]	2,280[note 1]	1,000[12] A1[12]	59,000[12]	310[12]	126[8]
HFC	R-424A	R-125/134a/600a/600/601a (50.5±1/47±1/.9+.1,–.2/1+.1,+.2/.6+.1,–.2)	50.5±1% C2HF5 · 47±1% C2H2F4 · 1.9+.3,–.1% C4H10 · .6+.1,–.2% C5H12	RS-44 (new comp.)[27]	21.525?[note 1]	0[note 2]	2,440?[note 1]	970[12] A1[12]	23,000[12]	100[12]	108.4[8]
HFC	R-425A	R-32/134a/227ea (18.5±.5/69.5±.5/12±.5)	18.5±.5% CH2F2 · 69.5±.5% C2H2F4 · 12±.5% C3HF7		14.7405[note 1]	0[note 2]	1,505[note 1]	1,000[12] A1[12]	72,000[29]	260[29]	90.3[8]
HFC	R-426A	R-125/134a/600/601a (5.1±1/93±1/1.3+.1,–.2/.6+.1,–.2)	5.1±1% C2HF5 · 93±1% C2H2F4 · 1.3+.1,–.2% C4H10 · .6+.1,–.2% C5H12	RS-24 (new comp.)[27]	14.727?[note 1]	0[note 2]	1,508?[note 1]	990[12] A1[12]	20,000[12]	83[12]	101.6[8]
HFC	R-427A	R-32/125/143a/134a (15±2/25±2/10±2/50±2)	15±2% CH2F2 · 25±2% C2HF5 · 10±2% C2H3F3 · 50±2% C2H2F4	Forane 427A[27]	20.185[note 1]	0[note 2]	2,138[note 1]	1,000[12] A1[12]	79,000[29]	290[29]	90.4[8]
HFC	R-428A	R-125/143a/290/600a (77.5±1/20±1/.6+.1,–.2/1.9+.1,–.2)	77.5±1% C2HF5 · 20±1% C2H3F3 · .6+.1,–.2% C3H8 · 1.9+.1,–.2% C4H10	RS-52[27]	33.175?[note 1]	<0(smog)[note 2]	3,607[note 1]	1,000[12] A1[12]	83,000[32]	370[32]	107.5[8]
HFC	R-429A	R-E170/152a/600a (60±1/10±1/30±1)	60±1% C2H6O · 10±1% C2H4F2 · 30±1% C4H10		3.749?[note 1]	<0(smog)[note 2]	13.9[note 1]	1,000[12] A3[12]	6,300[12]	13[12]	50.8[8]
HFC	R-430A	R-152a/600a (76±1/24±1)	76±1% C2H4F2 · 24±1% C4H10		3.944?[note 1]	0[note 2]	95[note 1]	1,000[12] A3[12]	8,000[12]	21[12]	64[8]
HFC	R-431A	R-290/152a (71±1/29±1)	71±1% C3H8 · 29±1% C2H4F2		8.926?[note 1]	<0(smog)[note 2]	38.3[note 1]	1,000[12] A3[12]	5,500[12]	11[12]	48.8[8]
HO	R-432A	R-1270/E170 (80±1/20±1)	80±1% C3H6 · 20±1% C2H6O		9.603?[note 1]	<0(smog)[note 2]	1.64[note 1]	710[12] A3[12]	1,200[12]	2.1[12]	42.8[8]
HO	R-433A	R-1270/290 (30±1/70±1)	30±1% C3H6 · 70±1% C3H8		12 ± 3[e]	< 0(smog)[e]	2.85[note 1]	880[12] A3[12]	3,100[12]	5.5[12]	43.5[8]	−44.6/−44.2?
HO	R-433B	R-1270/290 (5±1/95±1)	5±1% C3H6 · 95±1% C3H8		12 ± 3[e]	< 0(smog)[e]	3.23[note 1]	950[33] A3[33]	4,500[33]	8.1[33]	44[8]	−42.7/−42.5[33]
HO	R-433C	R-1270/290 (25±1/75±1)	25±1% C3H6 · 75±1% C3H8		12 ± 3[e]	< 0(smog)[e]	2.93[note 1]	790[33] A3[33]	3,600[33]	6.6[33]	43.6[8]	−44.3/−43.9[33]
HFC	R-434A	R-125/143a/134a/600a (63.2±1/18±1/16±1/2.8+.1,–.2)	63.2±1% C2HF5 · 18±1% C2H3F3 · 16±1% C2H2F4 · 2.8+.1,–.2% C4H10	RS-45[27]	30.264?[note 1]	0[note 2]	3,245[note 1]	1,000[12] A1[12]	73,000[12]	320[12]	105.7[8]	−45.0/−42.3[34]
HFC	R-435A	R-E170/152a (80±1/20±1)	80±1% C2H6O · 20±1% C2H4F2		0.292[note 1]	<0(smog)[note 2]	25.6[note 1]	1,000[12] A3[12]	8,500[12]	17[12]	49[8]	−26.1/−25.9[12]
HC	R-436A	R-290/600a (56±1/44±1)	56±1% C3H8 · 44±1% C4H10		12 ± 3[e]	<0(smog)[note 2]	3.17[note 1]	1,000[12] A3[12]	4,000[12]	8[12]	49.3[8]	−34.3/−26.2[12]
HC	R-436B	R-290/600a (52±1/48±1)	52±1% C3H8 · 48±1% C4H10		12 ± 3[e]	<0(smog)[note 2]	3.16[note 1]	1,000[12] A3[12]	4,000[12]	8[12]	49.9[8]	−33.4/−25.0[12]
HFC	R-437A	R-125/134a/600/601 (19.5+.5,–1.8/78.5+1.5,–.7/1.4+.1,–.2/.6+.1,–.2)	19.5+.5,–1.8% C2HF5 · 78.5+1.5,–.7% C2H2F4 · 1.4+.1,–.2% C4H10 · .6+.1,–.2% C5H12		16.885?[note 1]	0[note 2]	1,805?[note 1]	990[12] A1[12]	19,000[12]	81[12]	103.7[8]	−32.9/−29.2[12]
HFC	R-438A	R-32/125/134a/600/601a (8.5+.5,-1.5/45±1.5/44.2±1.5/1.7+.1,-.2/.6+.1,-.2)	8.5+.5,-1.5% CH2F2 · 45±1.5% C2HF5 · 44.2±1.5% C2H2F4 · 1.7+.1,-.2% C4H10 · .6+.1,-.2% C5H12	KDD5,[27] ISCEON MO99[27]	19.9305?[note 1]	0[note 2]	2,265?[note 1]	990[28] A1[28]	20,000[29]	79[29]	99.1[8]	−43.0/−36.4[28]
HFC	R-439A	R-32/125/600a (50±1/47±1/3±.5)	50±1% CH2F2 · 47±1% C2HF5 · 3±.5% C4H10		16.44?[note 1]	0[note 2]	1,983[note 1]	990[19] A2[19]	26,000[19]	76[19]	71.2[8]	−52.0/−51.8[19]
HFC	R-440A	R-290/134a/152a (.6±.1/1.6±.6/97.8±.5)	.6±.1% C3H8 · 1.6±.6% C2H2F4 · 97.8±.5% C2H4F2		1.6652?[note 1]	<0(smog)[note 2]	144[note 1]	1,000[19] A2[19]	12,000[19]	31[19]	66.2[8]	−25.5/−24.3[19]
HC	R-441A	R-170/290/600a/600 (3.1±.3/54.8±2/6±.6/36.1±2)	3.1±.3% C2H6 · 54.8±2% C3H8 · 42.1±2.6% C4H10	HCR-188C[27]	12 ± 3[e]	<0(smog)[note 2]	3.6[note 1]	1,000[19] A3[19]	3,200[19]	6.3[19]	48.3[8]	−41.9/−20.4[19]
HFC / HFO[35]	R-448A	R-32/125/134a/1234ze/1234yf (26%/26%/21%/7%/20%)[35]	26% CH2F2  · 26% C2HF5  · 21% C2H2F4  · 7% C3H2F4  · 20% C3H2F4[35]	Solistice N-40[35]		0[35]	1273[35]	A1[35]			86.3[36]	−45.9[36]	83.7[35]	4,660[35]
HFO	R-449A	R-32/R-125/134a/1234yf (24.3%/24.7%/25.7%/25.3%)	24.3% CH2F2  · 24.7% C2HF5  · 25.7% C2H2F4  · 25.3% C3H2F4	Forane 449a[37]		0	1,282[37]	A1[37]			87.2[37]	−45.9[37]	81.5[37]
HFO	R-452A	R-32/R-125/1234yf (11%/59%/30%)	11% CH2F2  · 59% C2HF5  · 30% C3H2F4	Opteon™️ XP44, Solstice® R452A
HFO	R-452B	R-32/R-125/1234yf (67.0%/7.0%/26.0%)	67.0% CH2F2  · 7.0% C2HF5  · 26.0% C3H2F4	Opteon XL55,[38] Solstice L41y[39]		0	676[38][39]	A2L[39]			63.5[39]	−50.9/−50.1[39]	76.0[39]	5,220[39]
HFC	R-453A	R-32/125/134a/227ea/600/601a (20%/20%/53.8%/5%/0.6%/0.6%)	20.0% CH2F2  · 20.0% C2HF5  · 53.8% C2H2F4  · 5.0% C3HF7  · 0.6% C4H10  · 0.6% C5H12	RS-70[40]		0	1,765[40]	1,000[40] A1[40]			88.8[40]	−42.2[40]	87.9[40]	4,530[40]
HFO	R-454A	R-32/1234yf (35.0%/65.0%)	35.0% CH2F2  · 65.0% C3H2F4	Opteon XL40[41]		0	239[41]	A2L[41]			80.5[41]	−48.3[41]	78.9[41]
HFO	R-454B	R-32/1234yf (68.9%/31.1%)	68.9% CH2F2  · 31.1% C3H2F4	Opteon XL41,[42] Puron Advance[43]		0	466[42]	A2L[42]			62.6[42]	−50.9[42]	77.0[42]
HFO	R-454C	R-32/1234yf (21.5%/78.5%)	21.5% CH2F2  · 78.5% C3H2F4	Opteon XL20[44]		0	148[44]	A2L[44]			90.8[44]	−45.9[44]	82.4[44]
HFO	R-455A	R-1234yf/32/744 (75.5%/21.5%/3%)	21.5% CH2F2  · 75.5% C3H2F4  · 3% CO2	Solstice L40x[45]		0	146[45]	A2L[45]			87.5[45]	−52.3/−39.4[45]	85.6[45]	4,660[45]
HFO	R-456A	R-32/134a/1234ze(E) (6.0%/45.0%/49.0%)	6.0% CH2F2  · 45.0% C2H2F4  · 49.0% C3H2F4			0	687						102.4
HFO	R-457A	R-32/152a/1234yf (18.0%/12.0%/70.0%)	18.0% CH2F2  · 12.0% C2H4F2  · 70.0% C3H2F4	Forane 457a[46]		0	139[47]	A2L[47]					92.6
HFC	R-458A	R-32/125/134a/227ea/236fa (20.5%/4.0%/61.4%/13.5%/0.6%)	20.5% CH2F2 · 4.0% C2HF5 · 61.4% C2H3F3 · 13.5% C3HF7 · 0.6% C3H2F6			0	1,650[48]						92.0
HFO	R-459A	R-32/1234yf(E)/1234ze(E) (68.0%/26.0%/6.0%)	68.0% CH2F2  · 26.0% C3H2F4  · 6.0% C3H2F4	Forane 459a[46]		0	460
HFC/H	R-466A	R-32/125/13I1 (49/11.5/39.5)	49% CH2F2 · 11.5% C2HF5 · 39.5% CIF3	Solstice N41[49]		0[49]	733[49]	A1[49]				−51.7[49]	76.5[49]	5144[49]
HCFC	R-500	R-12/152a (73.8/26.2)	73.8% CCl2F2 · 26.2% C2H4F2	Carrene #7[10]	74.1668[note 1]	0.738[note 2]	8,077[note 1]	1,000[12] A1[12]	30,000[12]	120[12]	99.3[8]	−33/0[20]	102.15[10]	4,173[10]
HCFC	R-501	R-22/12 (75/25)	75% CHClF2 · 25% CCl2F2		34[note 1]	0.2875[note 2]	4,083[note 1]	1,000[12] A1[12]	54,000[12]	210[12]	93.1[8]	−41/−41[20]	96.19[10]	4,764[10]
HCFC	R-502	R-22/115 (48.8/51.2)	48.8% CHClF2 · 51.2% C2F5Cl		876.256[note 1]	0.24968[note 2]	4,657[note 1]	1,000[12] A1[12]	73,000[12]	330[12]	111.6[8]	−45/19[20]	80.73[10]	4,019[10]
HCFC	R-503	R-23/13 (40.1/59.9)	40.1% CHF3 · 59.9% CClF3		491.63[note 1]	0.599[note 2]	14,560[note 1]	1,000[12] A1?	40,000?	200?	87.2[8]	−88/88[20]	18.43[10]	4,265[10]
HCFC	R-504	R-32/115 (48.2/51.8)	48.2% CH2F2 · 51.8% C2F5Cl		882.9618[note 1]	0.22792[note 2]	4,143[note 1]	1,000[12] A1?	140,000[29]	450[29]	79.2[8]	−57/17[20]	62.13[10]	4,439[10]
HCFC	R-505	R-12/31 (78/22)	78% CCl2F2 · 22% CH2FCl		78.0836+[note 1]	0.7844[note 2]	8,504+[note 1]	350? B2?	10,000?	20?	103.5[8]	−30/115[20]	117.78[10]	4,730[10]
HCFC	R-506	R-31/114 (55.1/44.9)	55.1% CH2FCl · 44.9% C2F4Cl2		134.90938+[note 1]	0.46002[note 2]	4,495+[note 1]	350? B2?	10,000?	20?	93.7[8]	−12/18[20]	142.22[10]	5,157[10]
HFC	R-507[A]	R-125/143a (50/50)	50% C2HF5 · 50% C2H3F3	AZ-50[10][27]	40.5[note 1]	0[note 2]	3,985[note 1]	1,000[12] A1[12]	130,000[12]	520[12]	98.9[8]	−46.7/−40[20]	70.74[10]	3,715[10]
HFC	R-508[A]	R-23/116 (39/61)	39% CHF3 · 61% C2F6	Klea 5R3[10][27]	6,205.3[note 1]	0[note 2]	13,214[note 1]	1,000[12] A1[12]	55,000[12]	220[12]	100.1[8]	−86/−86[20]	11.01[10]	3,701[10]
HFC	R-508B	R-23/116 (46/54)	46% CHF3 · 54% C2F6	Suva 95[10][27]	5,524.2[note 1]	0[note 2]	13,396[note 1]	1,000[12] A1[12]	52,000[12]	200[12]	95.4[8]	-88.3/−45.6[20]	12.06[10]	3,834[10]
HCFC	R-509[A]	R-22/218 (44/56)	44% CHClF2 · 56% C3F8	Arcton TP5R2[10]	1,461.28[note 1]	0.022[note 2]	5,741[note 1]	1,000[12] A1[12]	75,000[12]	390[12]	124[8]	−47/0[20]	87.22[10]	4,033[10]
HC	R-510[A]	R-E170/600a (88±.5/12±.5)	88±.5% C2H6O · 12±.5% C4H10		1.4532?[note 1]	<0(smog)[note 2]	1.24[note 1]	1,000[12] A3[12]	7,300[12]	14[12]	47.2[8]	−25.2/−25.2[12]
HC	R-511[A]	R-290/E170 (95±1/5±1)	95±1% C3H8 · 5±1% C2H6O		11.40075?[note 1]	< 0(smog)[e]	3.19[note 1]	1,000[29] A3[29]	5,300[29]	9.5[29]	44.2[8]	−42.1/−20-40[29]
HFO	R-513A	R-1234yf/134a (56%/44%)	56% C3H2F4  · 44% C2H2F4			0[50]	573[50]	A1[50]			108.4[50]	−29.4[50]	96.5[50]	3,766[47]
HFO	R-514A	R-1336mzz-Z/trans-1,2-Dichloroethene(t-DCE)(74.7%/25.3%)[51]	74.7% C4H2F6  · 25.3% C2H2CL2[52]			0	2	B1			139.6	29.1	96.5	3,520
HFO	R-515B	R-1234ze/227ea					299[53]
HC	R-600	Butane	C4H10 or CH3CH2CH2CH3	106-97-8	6.8 days[23]	0[18]	4.0[3]–6.5[23]	1,000[12] A3[12]	4,000?	9.6?	58.1[8]	0[20]±1[9]	152.01[10]	3,796[10]
HC	R-600a	Isobutane	C4H10 or CH(CH3)2CH3	75-28-5	12 ± 3[54][e]	0[18][55]	3[55]	1,000[12] A3[12]	4,000[12]	9.6[12]	58.1[8]	−11.7[9]	134.7[10]	3,640[10]
HC	R-601	Pentane	C5H12 or CH3CH2CH2CH2CH3	109-66-0	12 ± 3[e]	0[18]	4 ± 2[f]	600[12] A3[34]	1,000[34]	2.9[34]	72.1[8]	36.1[34]±.2[9]	196.56[10]	3,358[10]
HC	R-601a	Isopentane	C5H12 or (CH3)2CHCH2CH3	78-78-4	12 ± 3[e]	0[18]	4 ± 2[f]	600[12] A3[12]	1,000[12]	2.9[12]	72.1[8]	27.7[9]	187.78[10]	3,378[10]
HC	R-610	Ethoxyethane (Diethyl ether)	CH3CH2OCH2CH3	60-29-7	12 ± 3[e]	< 0(smog)[e]	4 ± 2[f]	400[12] A3?			74.1[8]	34.6[9]	193.65[10]	3,640[10]
HC	R-611	Methyl formate	HCOOCH3	107-31-3	12 ± 3[e]	0[18][55]	< 25[18][55]	100[12] B2[12]			60.1[8]	32[9][20]	213.55[10]	6,000[10]
HC	HC-12a	Propane/isobutane[56]	40–70% C3H8 · 30–60% C4H6 (by volume)									−33
HC	HC-22a	Propane[56]	C3H8 98% by volume									−42
HC	HC-502a	Propane/ethane[56]	C3H8 60–100% · C2H6 3-7% (by volume)									−49
HFC / HFO	DR-14A[57]						415					−20.4	110.7	3,960
HFC	SP34E[58]	R-134a (98.5%)	C2H2F4 (98.5%)
	R-630	Methylamine	CH3NH2	74-89-5							31.1[8]	−6[9]	156.89[10]	7,460[10]
	R-631	Ethylamine	CH3CH2(NH2)	75-04-7							45.1[8]	16.6[9]	183[10]	5,620[10]
	R-702	Hydrogen	H2	1333-74-0			5.8[3]	A3[12]			2.016[8]	−252.87[9]	−239.95[22]	1,300[22]
	R-704	Helium	He	7440-59-7	Unlimited[g]	0[g]	0[g]	9,340? A1[12]			4.002[8]	−268.93[9]	−267.96[22]	227[22]
	R-717	Ammonia	NH3	7664-41-7	< 0.019165[59]	0[59]	0[59]	25[12] B2L[19]	320[12]	0.22[12]	17.03[8]	−33.34[9]	132.4[60]	11,280[60]
	R-718	Water/Steam	H2O	7732-18-5	0.026	0[61]	0.2 ± 0.2[3]	A1[12]			18.02[8]	100[20]	373.946[22]	22,060[22]
	R-720	Neon	Ne	7440-01-9	Unlimited[g]	0[g]	0[g]	9,340? A1[12]			20.18[8]	−246.08[9]	−228.75[22]	2,760[22]
	R-728	Nitrogen	N2	7727-37-9	Unlimited[g]	0[g]	0[g]	A1[12]			28.01[8]	−195.79[9]	−146.9[22]	3,390[22]
	R-729	Air N2/O2/Ar (78.082/20.945/.934 vol%)	78.082% N2 · 20.945% O2 · .934% Ar		Unlimited[g]	0[61][g]	0.00054+[3]	A1?			28.97[8]	−192.97?	−140.53[10]	3,785[10]
	R-732	Oxygen	O2	7782-44-7	Unlimited[g]	< 0[g]	0[g]	A1?			32[8]	−182.95[9]	−118.6[22]	5,050[22]
	R-740	Argon	Ar	7440-37-1	Unlimited[g]	0[g]	0[g]	9,340? A1[12]			39.95[8]	−185.85[9]	−122.4[22]	4,870[22]
	R-744	Carbon dioxide	CO2	124-38-9	29,300-36,100[62]	0[18]	1[3]	5,000[12] A1[12]	40,000[12]	72[12]	44[8]	−56.56 at 518 kPa[note 3][63]	31.04[22]	7,380[22]
	R-744A	Nitrous oxide	N2O	10024-97-2	114[3]	0.017[21]	265[6]	A1?			44[8]	−88.48[9]	36.4[22]	7,240[22]
	R-764	Sulfur dioxide	SO2	7446-09-5				5[64] B1[12]	100[64]	0.262[64]	64.1[8]	−10[9][20]	157.65[10]	7,880[10]
	R-784	Krypton	Kr	7439-90-9	Unlimited[g]	0[g]	0[g]	9,340? A1?			83.80[8]	−153.22[9]	−63.8[22]	5,500[22]
CFO	R-1112a	1,1-Dichloro-2,2-difluoroethylene	C2Cl2F2	79-35-6							132.9[8]
CFO	R-1113	Chlorotrifluoroethylene	C2ClF3	79-38-9							116.5[8]	−27.8[9]
PFO	R-1114	Tetrafluoroethylene	C2F4	116-14-3		0[d]					100[8]	−76.3[9]
HCO	R-1120	Trichloroethylene (trielene)	C2HCl3	79-01-6							131.4[8]	87.2[9]	297.78[10]	4,909[10]
HCO	R-1130(E)	trans-1,2-Dichloroethylene	C2H2Cl2	156-60-5		0[18]	< 25[18]				96.9[8]	48.5[9]	243.28[10]	5,481[10]
HFO	R-1132a	1,1-Difluoroethylene	C2H2F2	75-38-7		0[d]					64[8]	−83[65]	29.7[10]	4,458[10]
HCO	R-1140	Chloroethylene (vinyl chloride)	C2H3Cl	75-01-4				100? B3[7]			62.5[8]	−13.4[9]	151.83[10]	5,150[10]
HFO	R-1141	Fluoroethylene (vinyl fluoride)	C2H3F	75-02-5		0[d]					46[8]	−72.2[9]
HO	R-1150	Ethene (Ethylene)	CH2=CH2	74-85-1	12 ± 3[e]	< 0(smog)[e]	3.7[3]	200[12] A3[12]			28.05[8]	−103.7[9]	9.19[10]	5,040[10]
PFO	R-1216	Hexafluoropropylene	C3F6	116-15-4	1,000+[3][4]	0[d]	17,340+[3]				150[8]	−28[9]
PFO	R-1218	Hexafluoropropene trimer	(C3F6)3	6792-31-0		0[d]					450.1[8]
HCFO	R-1224yd(Z)	(Z)-2,3,3,3,-Tetrafluoro-1-Chloropropene[66][67][68]	(Z)-CF3-CF=CHCl	111512-60-8	0.032 (21 days)[69]	0.00012[69]	<1[69]				148.5[69]	14°C[69]	156°C[69]	3330[69]
HCFO	R-1233zd(E)	trans-1-chloro-3,3,3-trifluoropropene	C3H2ClF3	102687-65-0	0.0712328[70]	0[70]	1[70]				130.5[8]	19
HFO	R-1234yf	2,3,3,3-Tetrafluoropropene	C3H2F4	754-12-1	0.030116[71]	0[55]	<1[55][72][71]	500[73] A2L[19]	16,000[74]	75[74]	114[8]	−29.4[74]
HFO	R-1234ze(E)	trans-1,3,3,3-tetrafluoropropene	C3H2F4	29118-24-9		0[55]	<1[55][72]	800[29] A2L[29]	16,000[29]	75[29]	114[8]	−19.0[9][29]
HO	R-1270	Propene (Propylene)	C3H6 or CH3CH=CH2	115-07-1	12 ± 3[e]	< 0(smog)[e]	1.8[3]	500[12] A3[12]	1,000[12]	1.7[12]	42.1[8]	−47.6[9]	92.42[10]	4,665[10]
HFO	R-1336mzz(E)[57]	trans-1,1,1,4,4,4-hexafluoro-2-butene	C4H2F6	66711-86-2		0	18					7.5	137.7	3,150
HFO	R-1336mzz(Z) (DR-2)[57][75]	cis-1,1,1,4,4,4-hexafluoro-2-butene	CF3CH=CHCF3(Z)	692-49-9		0	2	A1				37.4	171.3	2,900
T y p e	ASHRAE number	IUPAC chemical name	Molecular formula	CAS no/ blend name	Atmospheric lifetime (years)	Semi- empirical ODP	Net GWP 100-yr	OEL/PEL ppm (v/v) & ASHRAE 34 safety group	RCL/IDLH		Molecular mass u	Boiling, or bubble/dew /azeotropic point(s) °C	Critical temp. °C	Critical pressure, absolute kPa
									ppm (v/v)	g/m3

Type and flammability

Legends

Types / Prefixes[76] Type Meaning Atoms in the Molecule CFC Chlorofluorocarbon Cl, F, C CFO Chlorofluoroolefin HCFC Hydrochlorofluorocarbon H, Cl, F, C HCFO Hydrochlorofluoroolefin HFC Hydrofluorocarbon H, F, C HFO Hydrofluoroolefin HCC Hydrochlorocarbon H, Cl, C HCO Hydrochloroolefin HC Hydrocarbon H, C HO Olefin (Alkene) PFC Perfluorocarbon F, C PFO Perfluoroolefin PCC Perchlorocarbon Cl, C H Halon/Haloalkane Br, Cl (in some but not all), F, H (in some but not all), C

Safety Classification of Refrigerants[77] Flammability in Air @ 60 °C & 101.3 kPa ASHRAE 34 Safety group Higher Flammability LFL or ETFL60 = 100 g/m3 OR HOC = 19 MJ/kg[78] A3 B3 Lower Flammability LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg[78] A2 B2 Lower Flammability LFL or ETFL60 > 100 g/m3 & HOC < 19 MJ/kg[78] with a maximum burning velocity of = 10 cm/s A2L B2L No flame Propagation A1 B1 Flammability in Air @ 60 °C & 101.3 kPa Lower Toxicity OEL ≥ 400 ppm[30] Higher Toxicity OEL < 400 ppm[30] LFL = Lower Flammability Limit ETFL60 = Elevated Temperature Flame Limit @ 60 °C HOC = Heat Of Combustion

Compounds used as refrigerants may be described using either the appropriate prefix above or with the prefixes "R-" or "Refrigerant." Thus, CFC-12 may also be written as R-12 or Refrigerant 12.
An alkene, olefin, or olefine is an unsaturated compound containing at least one carbon-carbon double bond.^[79]

Educated Estimates

1. Some CFCs are assumed to be similar in terms of Semi-Empirical ODP being one.^[4][13]
2. Some HCFCs are assumed to be similar in terms of Semi-Empirical ODP.^[4][16]
3. Some HCFCs are assumed to be similar in terms of Atmospheric Lifetime^[3][4] & net GWP over a 100-year time horizon.^[3][4]
4. All HFCs, HFOs, PFCs & PFOs are assumed to be similar in terms of Semi-Empirical ODP being zero.^[15][18]
5. Most hydrocarbons are assumed to be similar to Methane in terms of Atmospheric Lifetime being 12 ± 3 years^[3] & Semi-Empirical ODP being < 0(smog chemistry).^[21]
6. Pentane, Isopentane & Ethoxyethane (Diethyl ether) is assumed to have a net GWP over 100-yr to be 4 ± 2.
7. Air, nitrogen, oxygen & the noble gases are assumed to have an unlimited Atmospheric Lifetime, a Semi-Empirical ODP of zero (except oxygen being slightly less than zero) & net GWP over 100-yr to be zero (except air being the sum of its parts).

See also

• Haloalkane
• Refrigerant