Huperzine A powder, Hup A is a natural sesquiterpene alkaloid compound found in Huperzia serrata. It does not have phenolic hydroxyl groups in its structure. Huperzine-A and Huperzine-B are congeners with similar pharmacodynamic characteristics. It is a relatively safe compound, and the content of Hup A currently mainly includes 99%, 5%, and 1%.
Huperzine A can be used in pharmaceutical research and development and health products with memory-enhancing functions.
| Examination Items | Examination Standards | Results |
| Appearance | White crystalline powder | Complies |
| Flavor&Odor | Odorless and Bitter taste | Complies |
| Extract Solvents | Soluble in Methanol;Partly soluble in Ethanol;Insoluble in water | Complies |
| Alkaloid identification | Positive reaction | Complies |
| HPLC identification | The retention time of sample consistents with that of the reference in the HPLC map | Complies |
| Loss on Drying | 4.0% max | 0.80% |
| Ash | 1.0% max | 0.27% |
| Related substances | Totle area of impurities in the test solution must be less then the area of main leap in the reference solution | Complies |
| Heavy Metals | 10ppm max | Complies |
| Arsenic | 2ppm max | Complies |
| 【Microbiological Inspection】 | ||
| Total Bacterial Count | 1000cfu/g max | Conformed |
| Total Yeasts and Molds | 100cfu/g max | 32cfu/g max |
| E. Coli | Negative | Not Detected |
| Salmonella | Negative | Not Detected |
| 【Content Assay】 | ||
| Huperzine-A | 98% min ( By HPLC) | 99.1% |
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