CheckVegan

Is Propiolactone vegan?

Propiolactone

Vegan Vegan
Vegetarian Vegetarian

β-Propiolactone is a synthetic organic compound, a colorless liquid lactone with a slightly sweet odor, used as a sterilizing agent; its carcinogenicity limits commercial applications.

Also known as Beta-Propiolactone
INCI name Propiolactone
CAS number 57-57-8
EC number 200-340-1
CosIng ID 29065
Last reviewed 9 July 2026

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

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