Sodium erythorbate

Sodium erythorbate (CAS 6381-77-7), also known as sodium isoascorbate, sodium erythorbin, and sodium D-isoascorbate, is the sodium salt of erythorbic acid, a stereoisomer of vitamin C. It carries no assigned E-code in the EU but is recognised under equivalent designations in international food additive frameworks.

In food processing, sodium erythorbate functions as an antioxidant by donating electrons to oxidising species, retarding lipid oxidation and colour degradation in cured meats, beverages, and frozen fish. In personal care formulations, it stabilises active ingredients and pigments against oxidative breakdown, extending product shelf life without altering sensory properties.

Sodium erythorbate is available in food-grade and cosmetic-grade specifications, with compliance references including FCC and REACH registration. It is supplied as a white crystalline powder in fibre drums or multi-layer bags. Buyers should confirm grade suitability against applicable regional food safety or cosmetic regulations before use.