Glycerine acetate

Glycerine acetate is a mixture of esters produced from the esterification of glycerol (1) with acetic acid. This reaction produces five congeners:

• the two monoacetylglycerols / MAG / monoacetin (2 and 3)
• the two diacetylglycerols / DAG / diacetin / glyceryl diacetate (4 and 5)
• the one triacetalglycerol / TAG / triacetin (6)

Structures of all possible acetate esters of glycerol

Glycerine acetate

R = H or CH3C(=O)
Names
Other names glycerol acetate glyceryl acetate 1,2,3-propanetriol acetate
Identifiers
CAS Number	1-monoacetin: 26446-35-5 Y 1,2-diacetin: 25395-31-7 Y triacetin: 102-76-1 Y
3D model (JSmol)	1-monoacetin: Interactive image 1,2-diacetin: Interactive image triacetin: Interactive image
ChemSpider	1-monoacetin: 30918 1,2-diacetin: 59412 triacetin: 13835706 2-monacetin: 556638
ECHA InfoCard	100.014.216
EC Number	1-monoacetin: 247-704-6 1,2-diacetin: 246-941-2 triacetin: 203-051-9
PubChem CID	1-monoacetin: 33510 1,2-diacetin: 66021 triacetin: 5541
RTECS number	triacetin: AK3675000
UNII	triacetin: XHX3C3X673 Y
InChI 1-monoacetin: InChI=1S/C5H10O4/c1-4(7)9-3-5(8)2-6/h5-6,8H,2-3H2,1H3 Key: KMZHZAAOEWVPSE-UHFFFAOYSA-N 1,2-diacetin: InChI=1S/C7H12O5/c1-5(9)11-4-7(3-8)12-6(2)10/h7-8H,3-4H2,1-2H3 Key: UXDDRFCJKNROTO-UHFFFAOYSA-N triacetin: InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3 Key: URAYPUMNDPQOKB-UHFFFAOYSA-N
SMILES 1-monoacetin: CC(=O)OCC(CO)O 1,2-diacetin: CC(=O)OCC(CO)OC(=O)C triacetin: CC(=O)OCC(COC(=O)C)OC(=O)C
Properties
Chemical formula	Variable
Molar mass	Variable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

In addition, two of the congeners, 2 and 4, are chiral and can exist in either of two enantiomeric forms.

Uses

DAG and TAG can be used as fuel additives for improving the cold and viscosity properties of biodiesel or the antiknocking properties of gasoline.^[1]