CheckVegan

Is Tetraethyl Orthosilicate vegetarian?

Tetraethyl Orthosilicate

Vegetarian Vegetarian
Vegan Vegan

Tetraethyl Orthosilicate (TEOS) is a colorless synthetic organosilicon compound and the ethyl ester of orthosilicic acid, used industrially and in cosmetics as a silica source or film-forming agent.

Also known as Ethyl Silicate, Ethyl Silicate,Silicic acid (H4SiO4), tetraethyl ester,TEOS, Silicic acid (H4SiO4), tetraethyl ester, TEOS
INCI name Tetraethyl Orthosilicate
CAS number 78-10-4
EC number 201-083-8
CosIng ID 95055
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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