1,4-Dibromobenzene

1,4-Dibromobenzene (p-dibromobenzene) is an aryl bromide and isomer of dibromobenzene that is solid at room temperature. It has a strong smell similar to that of the lighter chlorine analogue. It can be used as a precursor to the dye 6,6-dibromoindigo.^[4]

1,4-Dibromobenzene

Names
Preferred IUPAC name 1,4-Dibromobenzene
Other names p-Dibromobenzene
Identifiers
CAS Number	106-37-6 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:37150 Y
ChEMBL	ChEMBL195407 Y
ChemSpider	13868640 Y
ECHA InfoCard	100.003.083
EC Number	203-390-2
PubChem CID	7804
UNII	9991W3M5HZ Y
CompTox Dashboard (EPA)	DTXSID4024012
InChI InChI=1S/C6H4Br2/c7-5-1-2-6(8)4-3-5/h1-4H Y Key: SWJPEBQEEAHIGZ-UHFFFAOYSA-N Y InChI=1/C6H4Br2/c7-5-1-2-6(8)4-3-5/h1-4H Key: SWJPEBQEEAHIGZ-UHFFFAOYAE
SMILES Brc1ccc(Br)cc1
Properties
Chemical formula	C6H4Br2
Molar mass	235.906 g·mol−1
Appearance	White solid
Density	1.84 g/cm3 [1]
Melting point	87 °C (189 °F; 360 K)[2]
Boiling point	220.4 °C (428.7 °F; 493.5 K)[2]
Solubility in water	Practically insoluble[3]
Solubility in other solvents	Soluble in 70 parts ethanol[3] Soluble in benzene, chloroform and very soluble in diethyl ether[3]
Magnetic susceptibility (χ)	−101.4·10−6 cm3/mol
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335, H400, H411
Precautionary statements	P261, P264, P271, P273, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
Related compounds
Related compounds	1,2-Dibromobenzene 1,3-Dibromobenzene 1-Bromo-4-iodobenzene
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

See also

• 1,2-Dibromobenzene
• 1,3-Dibromobenzene
• 1-Bromo-4-iodobenzene