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             Vitamin B2

            Commodity Name: Vitamin B2
            Chemical Name: 7,8-Dimethyl-10-[(2S,3S,4R)-2,3,4,5-tetrahydroxypentyl]benzo[g]pteridine-2,4(3H,10H)-dione. 
            Other Name: Riboflavin
            CAS: 83-88-5
            M.F.: C17H20N4O6 
            M.W.: 376.36
            Structural Formula: 
             
            Properties: Yellow or orange-yellow, crystalline powder. Slightly soluble in water, practically insoluble in alcohol.  Solutions deteriorate on exposure to light, especially in the presence of alkali.
            Item Index

            Contents (ON DRY MATERIAL)

            97.0~103.0%

            Specific optical rotation (dried substance)

            -115~-135°

            Loss on drying

            ≤ 1.5%

            Sulphated ash

            ≤ 0.1%

            Uses: Feed additive ,food additive. pharmaceutical USP29/BP2007

            Packing: 25kg/fiber drum ,or 25kg/carton,or according to customers'  requirement

            Storage: In an airtight container , protected from light.

            Period of validity: In an airtight container, Three years

             
             
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