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Is Trimethylolpropane Tris-Mercaptopropionate vegan?

Trimethylolpropane Tris-Mercaptopropionate

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Vegetarian Vegetarian

Trimethylolpropane Tris-Mercaptopropionate is a synthetic thiol compound (a trifunctional mercaptopropionate ester of trimethylolpropane) used as a crosslinking agent in cosmetic and polymer formulations.

Also known as Propanoic acid, 3-mercapto-, 1,1'-[2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]-1,3-propanediyl] ester
INCI name Trimethylolpropane Tris-Mercaptopropionate
CAS number 33007-83-9
CosIng ID 94653
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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