Item | Standard |
Appearance | White or almost white, crystalline powder. |
Identification | Positive |
Appearance of solution | The Solution is clear and not more intensely colored than reference solution BY7 |
Assay | ≥99.5% |
Acidity or alkalinity | 6.0g sample 0.1M NaOH≤0.15ml |
Specific optical rotation | +52.5º to +53.3º |
Foreign sugars,soluble starch,dextrins | Qualified |