Product Name | Vitamin B7 ( Biotin) powder |
Molecular Formula | C10H16N2O3S |
Molecular Weight | 244.311 |
Density | 1.6±0.1 g/cm3 |
Solubility | Soluble in hot water and dilute lye. |
Boiling Point | 492.3±55.0 °C at 760 mmHg |
Melting Point | 231-233 °C(lit.) |
Item | Specifications | Results | |
Appearance | White crystal | White crystal | |
Solubility | Soluble in water and ether | Soluble in water and ether | |
Cyanide | Should be absent | No detected | |
Assay (Benzene) | 50 ppm max | No detected | |
Assay (on dry basis) | 1% min | 1.26% | |
Melting point | 117℃~121℃ | 118.6℃~119.2℃ | |
[a]D20 | ±0.25° | 0° | |
Transmittance (10% w/v water) | Not less than 90% | 97.1% | |
Residue on ignition | 0.5% max | 0.02% | |
Turbidity | <20NTU | 11.31NTU | |
Moisture | 0.5% max | 0.07% | |
Conclusion | The results conforms with enterprise standards |