This document provides information on erythorbic acid, including its identification, composition, physical characteristics, stability, handling, storage, exposure control, hazards identification, and first aid measures. Erythorbic acid is an organic compound used as a food antioxidant. It is a white, odorless crystalline powder that is soluble in water and may cause eye or skin irritation upon contact. Proper handling and storage procedures should be followed, and appropriate personal protective equipment worn, to safely use this compound.