CheckVegan

Is Acid Red 101 vegan?

Acid Red 101

Vegan Vegan
Vegetarian Vegetarian

Azocarmine G (Acid Red 101) is a synthetic azo dye used as a histological stain, particularly in trichrome staining methods such as Heidenhain's AZAN staining. It is classified under the Colour Index as CI 50085.

Also known as Acid red 101, Azocarmine G
CAS number 25641-18-3
CI number CI 50085
Last reviewed 3 June 2026

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

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