CheckVegan

Is Chlorotrianisene vegan?

Chlorotrianisene

Vegan Vegan
Vegetarian Vegetarian

Chlorotrianisene (CTA) is a synthetic nonsteroidal estrogen related to diethylstilbestrol, historically used to treat menopausal symptoms, estrogen deficiency, and prostate cancer, but now discontinued.

Also known as Benzene, 1,1',1''-(1-chloro-1-ethenyl-2-ylidene)tris(4-methoxy)-, TACE, tri-p-anisylchloroethylene
INCI name Chlorotrianisene
CAS number 569-57-3
EC number 209-318-6
CosIng ID 81570
Last reviewed 10 July 2026

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

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