CheckVegan

Is Pentagestrone vegan?

Pentagestrone

Vegan Vegan
Vegetarian Vegetarian

Pentagestrone is a synthetic steroidal progestin of the 17α-hydroxyprogesterone group that was never marketed itself, though its acetate ester was used clinically. It was first described in the literature in 1960.

Also known as 17α-Hydroxyprogesterone 3-cyclopentyl enol ether, 3-(Cyclopentyloxy)-17-hydroxypregna-3,5-dien-20-one
INCI name Pentagestrone
CAS number 7001-56-1
CosIng ID 81827
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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