Triacetin

Triacetin
IUPAC name 1,3-diacetyloxypropan-2-yl acetate
Identifiers
CAS number	102-76-1 Y
ChemSpider	13835706 Y
UNII	XHX3C3X673 Y
KEGG	D00384 Y
Jmol-3D images	Image 1
SMILES CC(=O)OC(COC(=O)C)COC(C)=O
InChI InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3 Y Key: URAYPUMNDPQOKB-UHFFFAOYSA-N Y InChI=1/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3 Key: URAYPUMNDPQOKB-UHFFFAOYAH
Properties
Molecular formula	C9H14O6
Molar mass	218.21 g/mol
Density	1.1562 g/cm3
Melting point	+3 °C
Boiling point	258–260 °C
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

The triglyceride 1,2,3-triacetoxypropane is more generally known as triacetin and glycerin triacetate. It is the triester of glycerol and acetic acid.

It is an artificial chemical compound, commonly used as a food additive, for instance as a solvent in flavourings, and for its humectant function, with E number E1518 and Australian approval code A1518. Triacetin is also a component of casting liquor with TG and as an excipient in pharmaceutical products where it is used as a humectant, a plasticizer, and as a solvent.

Triacetin can also be used as a fuel additive as an antiknock agent which can reduce engine knocking in gasoline, and to improve cold and viscosity properties of biodiesel.

In a 1994 report released by five top cigarette companies, triacetin was listed as one of the 599 cigarette additives. [1] The triacetin is applied to the filter as a plasticizer.

Because it is in some sense the simplest possible fat after glyceryl triformate, it has been considered as a possible source of food energy in artificial food regeneration systems on long space missions. It is believed to be safe to get over half of one's dietary energy from triacetin.