Appearance | A white crystalline powder | White crystalline powder |
Flavor & Odor | Odorless and bitter taste | Complies |
Solubility | Soluble in methanol, partly soluble in ethanol, insoluble in water | Complies |
Alkaloid identification | Positive reaction | Complies |
HPLC identification | The retention time of sample consistent with that of the reference in the HPLC map. | Complies |
Loss on drying | ≤4.0% | 0.8% |
Ash | ≤1.0% | 0.27% |
Related substances | Total area of impurities in the test solution must be less than the area of main leap in the reference solution | Complies |
Heavy metal | ≤20 ppm | Complies |
Arsenic | ≤20 ppm | Complies |
Total Bacterial count | 1000 cuf/g max | Complies |
Total Yeasts and molds | 1000 cuf/g max | 32cfu/g max |
E. Coli | Negative | Not detected |
Salmonella | Negative | Not detected |
Assay (HPLC) | ≥99.0% | 99.50% |
Conclusion | The product complies with enterprise standard. |
neutral system drug Huperzine A 102518-79-6