CheckVegan

Is Hexestrol vegan?

Hexestrol

Vegan Vegan
Vegetarian Vegetarian

Hexestrol is a synthetic nonsteroidal estrogen historically used in estrogen replacement therapy and for hormone-dependent cancers and gynecological disorders, now mostly discontinued.

Also known as (R*,S*)-4,4'-(1,2-diethylethylene)bis(phenol), Hexestrol, Phenol, 4,4'-(1,2-diethyl-1,2-ethanediyl)bis-, Synestrol
INCI name Hexestrol
CAS number 84-16-2
EC number 227-082-2
CosIng ID 81842
Last reviewed 4 July 2026

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

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.

Report an issue