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Riboflavin
Other name：Vitamin B2
Quality standard：USP33 / EP5 / BP2009
CAS NO.：83-88-5
HS CODE：29362300
M.F.：C17H20N4O6
Specification：20-30mesh
Appearance：Orange yellow crystalline powder
Yellow or orange yellow crystalline powder; smells slightly bitter; Slightly dissolves in water, not dissolve in ether, alcohol and chloroform, with the melting point of 281-290 centigrade.
Specifications：
| Items of Test | Limits of Test BP2008 |
| 1.Appearance | Orange yellow crystalline powder |
| 2.Identification | Positive |
| 3.Acidity or Alkalinity |
check the color of the test solution after adding the respective solutions |
| 4.Lumiflavin |
Absorbance of the filtrate at 440nm does not exceed 0.025 |
| 5.Absorbance |
0.31-0.33 A373nm/A267nm 0.36-0.39 A444nm/A267nm |
| 6.Particla Size | 100% passes through 40 mesh sieve |
| 7.Specific Rotation | between-115º and -135º |
| 8.Loss on Drying | ≤1.5% |
| 9.Heavy Metals | <10ppm |
| 10.Residue on Ignition | ≤0.1% |
| 11.Assay(ondried basis) | 97.0%-103.0% |
Usage：Riboflavin is the essential necessity for organism in normal living as the nutriment for infant, pregnant woman nursing mother, patient after illness and the aged. It, involve , participates in the metabolishm of carbonhydrate, protein and fat, and is the major composition of flavorprotein, the transferring enzyme system of hydrogen, In clinical practice, it is applicable to perleche, glossitis, ophthalmitis, conjunctivitis, ceborrhea, scrotum inflammations with proper effect ,In food and feed industry, it is widely used as food and feed additives.
Packing：25kg per fibre drum. Drum size:45x45x65cm
Shelf life：3years
Storage：Store in a cool, dry, ventilated environment.
Advantage on this item：price good, delivery guaranteed.
Packing photos：
