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By certification 
Molecular formula: C10H16N2O3
Molecular Weight: 244.31
Packaging: 5KG/Tin, 10KG/Drum, 20KG/Drum
Characters: Colorless to nearly colorless crystalline powder. Melting point 232-233°C, 25°C, when the solubility (mg/100ml): water --22; 95% ethanol --80. More easily soluble in hot water and dilute alkali solution, insoluble in other common organic solvents, when the decomposition of alkali or oxidizing agent.
| Biotin | |
| Assay | 98.5 - 101.0% |
| Residue on ignition | ≤0.1% |
| Loss on drying | ≤1.0% |
| Heavy metals | ≤10PPM |
| Specific Rotation | +89°- +93° |
