3-Methoxy propionitrile|5-hydroxy-1-tetralone|3-(methyl amino)-propionitrile|3,6-Dichloro-4-methylpyridazine|3-Chloro-6-methyl pyridazine--Frandcom Chemicals (Riyuexin Chemicals & Haiding Chemicals)
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Vitamin B2
Author:admin    Pubdate:2013-04-08 15:41    Views:
  

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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