Sodium ascorbate of China H&Z® supplier is sodium slat of ascorbic acid, which is commonly called vitamin C. It is slightly yellow to white powder, odorless, soluble in water. The molecular formula of sodium vitamin C is C6H7NaO6, and its CAS number is 134-03-2. In 1,000 grams sodium ascorbate, it contains 889g ascorbic acid and 111g sodium.