Riboflavin

Product Name: Riboflavin ,VB2,Vitamin B2 CAS No: 83-88-5 Molecular Formula: C17H20N4O 6 Molecular Weight: 376.37 Desciption: It is yellow or orange-yellow crystalline powder, a little bitter, a little odor, m.p.280(decomposition). It very slightly dissolves in wter and practically in insoluble in alcohol, easily dissolves in NaOH solution. Usage: Food additive, food enhanced function. Storage and Transportation: It must be stored in dry, cool and ventilating place. The standard of Riboflavin (VB2) Item Targets (USP30) Targets(BP2007) Targets(GB14752-93) Appearance A yellow or orange yellow crystalline powder A yellow or orange yellow crystalline powder A yellow or orange yellow crystalline powder Identification Conform Conform Conform Loss on drying, % ≤1.5 ≤1.5 ≤1.5 Residue on ignition,% ≤0.3 ≤0.1 ≤0.3 Specific roation, -115 -135 -115 -135 -120 -140 Lumifavine,% 440nm Absorbance≤0.025 0.025 0.025 Absorbance / A373nm/A267nm=0.31 0.33 A444nm/A267nm=0.36 0.39 / Organic volatile impurities Meet the requirements / / Acidity or alkalinity,PH / Meet the requirements / Assay (on dried basis) 98.0 102.0 97.0 103.0 98.0 102.0