Product Name Vitamin B2Alias RiboflavinMolecular Formula C17H20N4O6Molecular Weight 376.3639CAS No. 83-88-5;69680-01-9Shelf Life 2 years Quality Standard ......
| Analytical Items | Standard |
| Appearance | A yellow or orange-yellow crystalline powder |
| Identification | Positive |
| Assay | ≥80.0% |
| PH | 5.0~6.5 |
| Specific Optical Rotation | +37°~+42° |
| Loss on drying | ≤7.5% |
| Lumiflavine | ≤0.025% |
| Free Riboflavin | ≤6.0% |
| Riboflavin Diphosphate | ≤6.0% |
| Free Phosphate | ≤1.0% |
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