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Is Benzisothiazolinone vegan?

Benzisothiazolinone

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Vegetarian Vegetarian

Benzisothiazolinone (BIT) is a synthetic organic compound related to isothiazole, widely used as a preservative and antimicrobial agent in cosmetics and industrial products.

Also known as 1,2-Benzisothiazol-3(2H)-one, BIT
INCI name Benzisothiazolinone
CAS number 2634-33-5
EC number 220-120-9
CosIng ID 32133
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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