vitamin b2 powder feed grade CAS No.:83-88-5 Empirical formula:C17H20N4O6 Appearance:oringe yellow powder Riboflavin VITAMIN B2, LACTOFLAVIN, FLAVINSynonyms: 7,8-dimethyl ... C17H20N4O6, calculated on the dried basis.Characteristic: Tan needle crystal powder, has a low solubility.Usage And Functions: Riboflavin is beneficial ...