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Quality standard | EP10 |
Test Items | Specification index |
Appearance | White or almost white crystalline powder, smellless and bitter taste |
Melting Point | 151-154°C |
Structural Formula |
|
Colour Reaction | Positive reaction |
Comparative Spectrum | Retention time of the principal peak is identical with that of the comparative solution |
Comparative spectrum | Infrared rays absorption spectrum is identical with comparative spectrum |
Clarify of solution and colour | Be up to the standard |
PH | 5.0-7.0 |
Related substances | The area of total impurities' peak isn't more than the area of the comparative solution's principal peak |
Loss on drying | ≤0.5% |
Residue on ignition | ≤0.1% |
Heavy Metals | ≤20ppm |
Assay (HPLC) | 98.0%-102.0% |
Microbial Limit Tests | Conforms |
Packing | 25kgs or 20kgs/paper drum |
Usage | Improve ideation and memory, used to cure memory and ideation regression caused by cerebral arteriosclerosis and cerebrovascular accidents |
Manufacturing
