Is Sodium Metabisulfite vegan?

Sodium Metabisulfite

Vegan

Sodium Metabisulfite is an inorganic salt appearing as a white to yellowish powder with a characteristic sulfur dioxide odor. It is produced synthetically and used as a disinfectant, antioxidant, and preservative in food, cosmetic, and pharmaceutical applications.

Also known as Disodium Metabisulfite, Disodium Pyrosulfite, Sodium Disulfite, Sodium Pyrosulfite
E number E223
CAS number 7681-57-4
EC number 231-673-0
Last reviewed 16 April 2026

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