Glyceryl diacetate

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Glyceryl diacetate
1,2-glyceryl diacetate.svg
1,2-glyceryl diacetate
1,3-glyceryl diacetate.svg
1,3-glyceryl diacetate
Other names
Diacetin; Glycerol diacetate
3D model (JSmol)
ECHA InfoCard 100.042.659 Edit this at Wikidata
EC Number
  • 246-941-2
E number E1517 (additional chemicals)
RTECS number
  • AK3325000
  • InChI=1S/C7H12O5/c1-5(9)11-4-7(3-8)12-6(2)10/h7-8H,3-4H2,1-2H3
  • CC(=O)OCC(CO)OC(=O)C
Molar mass 176.168 g·mol−1
Melting point −30 °C (−22 °F; 243 K)
Boiling point 280 °C (536 °F; 553 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Glyceryl diacetate is a food additive with the E number E1517.[1] This diglyceride is more generally known as diacetin. It is the diester of glycerol and acetylating agents, such as acetic acid and acetic anhydride.[2] It is a colorless, viscous and odorless liquid with a high boiling point. Glycerol diaceate is typically a mixture of two isomers, 1,2-glyceryl diacetate and 1,3-glyceryl diacetate.[3]

See also[edit]


  1. ^ "Call for food additives usage level and/or concentration data in food and beverages intended for human consumption (Batch 7)". EFSA. Retrieved 1 October 2018.
  2. ^ Kong, P. S.; Aroua, M. K.; Daud, W. M. A. W.; Lee, H. V.; Cognet, P.; Peres, Y. (2016). "Catalytic role of solid acid catalysts in glycerol acetylation for the production of bio-additives: a review". RSC Advances. 6 (73): 68885–68905. Bibcode:2016RSCAd...668885K. doi:10.1039/C6RA10686B. S2CID 102384754.
  3. ^ Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health