Triacetin

CAS 102-76-1

Used as an emulsifier — Codex also lists it as carrier, humectant.

Triacetin is a solvent, carrier and humectant, used to hold flavourings in solution and to keep chewing gum base soft.

Where it is and isn’t permitted

Status of Triacetin by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted21 CFR 184.1901retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFAPermitted

no numerical limit (good manufacturing practice)

CXS 192-1995 Table Three, INS 1518retrieved 2026-09-07

What it is made from

Made by reacting glycerol with acetic acid. The glycerol may be plant or animal in origin.

  • Vegan status depends on the source
  • Vegetarian status depends on the source
  • May raise a halal question
  • May raise a kosher question

This is not an omission. What this additive is made from is not fixed — depending on the manufacturer it may be plant, animal or microbial in origin, nobody is required to say which, and the same product can change source between production runs. Ask the manufacturer if it matters to you; a label cannot answer it.

CAS registry number
102-76-1
InChIKey
URAYPUMNDPQOKB-UHFFFAOYSA-N
PubChem
CID 5541

Every name it appears under

61 recorded names. A label may use any of them.

E number

  • E1518

CAS registry number

  • 102-76-1

As it appears in regulation

  • Triacetin

Other names

  • 1,2,3-Propanetriol, 1,2,3-triacetate
  • 1,2,3-Propanetriol, triacetate
  • 1,2,3-Propanetriyl triacetate
  • 1,2,3-triacetoxypropane
  • 1,2,3-triacetyl-sn-glycerol
  • 1,2,3-Triacetylglycerol
  • 1,3-diacetyloxypropan-2-yl acetate
  • 2,3-diacetyloxypropyl acetate
  • 2-(Acetyloxy)-1-[(acetyloxy)methyl]ethyl acetate
  • 2-acetyloxy-1-(acetyloxymethyl)ethyl acetate
  • Acetic, 1,2,3-propanetriyl ester
  • Acetin, tri-
  • Blekin
  • BRN 1792353
  • CAS-102-76-1
  • CCRIS 9355
  • EASTMAN Triacetin
  • Enzacetin
  • Enzactin
  • ENZACTIN (TN)
  • Estol 1581
  • Euzactin
  • FEMA No. 2007
  • FEMA Number 2007
  • Fungacet
  • Fungacetin
  • Glycerin triacetate
  • Glycerine triacetate
  • Glycerol triacetate
  • Glyceroli Triacetas
  • Glyceryl triacetate
  • Glyceryltriacetate
  • Glyped
  • HSDB 585
  • Ins no.1518
  • Kesscoflex TRA
  • Kodaflex triacetin
  • Motisil
  • propane-1,2,3-triyl triacetate
  • tri-acetin
  • triacetin
  • TRIACETIN (GLYCEROL TRIACETATE)
  • Triacetin (USP/INN)
  • Triacetin, 99%
  • Triacetin, CP
  • Triacetin, FCC
  • Triacetin, USP
  • Triacetina
  • Triacetine
  • Triacetinum
  • Triacetyl glycerin
  • Triacetyl glycerine
  • Triacetyl glycerol
  • Triacetyl-glycerol
  • Triacetylglycerol
  • Ujostabil
  • Vanay
  • XHX3C3X673

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.

Sources for this page

  • ecfr retrieved 2026-09-07
  • gsfa retrieved 2026-09-07

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable:/api/v1/additives/triacetin.json