Glyceryl Diacetate
The short version
Diacetin — a glycerol diester, niche carrier solvent for flavor and color extracts.
It's widely considered safe at the amounts used in food, so we mark it green. The Safety section below has the details.
Where it comes from
Manufactured by partial esterification of glycerol with acetic acid. A natural minor metabolite present in trace amounts in many fermented foods.
How it's used
Niche carrier solvent for flavor and color extracts in food and for active ingredients in pharmaceutical formulations. Less common than triacetin (E1518) — chosen where the partially-esterified solubility profile is preferred.
Safety profile
ADI not specified — considered safe. Hydrolyzed in digestion to glycerol and acetic acid, both normal dietary components.
Physical & chemical properties
Colorless oily liquid. Soluble in water; miscible with most organic solvents.
Regulation worldwide
Permitted globally with maximum-use limits per category.
Educational information only. Not medical or dietary advice.