This standard specifies the requirements, test methods, inspection rules, labeling, packaging, transportation, storage and shelf life of feed additive-sodium ascorbate products. This standard applies to the feed additive Chi-sodium ascorbate made from diascorbic acid. Chemical name: Sodium L-Ascorbate (alias: Sodium Vitamin C). Structural formula: ONa OH Molecular formula: Cs HzNaOe. Relative molecular mass: 198.11 (according to the international relative atomic mass in 2007).