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Riboflavin
CAS No.:83-88-5
Molecular Formula:C17H20N4O6 Molecular Weight: 376.37
Structural Formula:
Property:
Riboflavin is 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℃.
Specification:
1. BP/USP/EP
2. USP/FCC
3. FOOD GRADE
4. 95% DC GRADE
5. 80% FEED GRADE
| Item | Index |
| 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 (USP);not more intense than BY6(EP/BP) |
| 5.Absorbance | 0.31-0.33 A373nm/A267nm 0.36-0.39 A444nm/A267nm |
| 6.Particla Size | 100% passes through 80 mesh sieve |
| 7.Specific Rotation | between-115º and -135º (EP/BP/USP) |
| 8.Loss on Drying | ≤1.5% |
| 9.Heavy Metals | <10ppm |
| 10.Residue on Ignition | ≤0.3% (USP) ≤0.1%(EP/BP) |
| 11.Organic Volatile Impurities | Method IV <467> (USP) |
| 12.Assay(ondried basis) | 98.0%-102.0% (USP) 97.0%-103.0% (EP/BP) |
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, Riboflavin is applicable to perleche, glossitis, ophthalmitis, conjunctivitis, ceborrhea, scrotum inflammations with proper effect ,In food and feed industry, Riboflavin is widely used as food and feed additives.
Package and Strorage：
1.BP/USP/EP ---------20KG/25KG NET FIBER DRUM
2.USP/FCC ---------20KG/25KG NET CARTON
3.FOOD GRADE ---------10KG NET FIBER DRUM
4.95% DC GRADE ---------25KG NET FIBER DRUM
5.80% FEED GRADE ---------25KG NET CARTONS
Riboflavin is in well Sealed Containers, Stored in Cool ,dry place and keep from light.
Shelf life:
2 years in original packages under the described conditions.
Key words:
7,8-Dimethyl-10-ribitylisoalloxazine; Lactoflavine; Vitamin B2; Riboflavin