Anhui Sunhere Pharmaceutical Excipients Co., Ltd.
Chinese professional solid pharmaceutical excipient production enterprise China National High tech Enterprise Member unit of the Vice Chairman of the China Pharmaceutical Accessories Professional
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| Item | USP | BP/EP |
| Identification | Conforms | |
| pH | 4.0-7.0 | |
| Water (%) | ≤5.0 | |
| Residue on ignition/Sulphated Ash(%) | ≤0.1 | |
| Aldehydes | ≤0.05% | 500ppm |
| 2-Pyrrolidone(%) | ≤3.0 | |
| Vinylpyrrolidinone(%) | ≤0.001 | |
| K-value | 81-97.2 | 85-95 |
| Nitrogen content(%) | 11.5-12.8 | |
| Peroxides(ppm) | ≤400 | |
| Formic Acid(%) | ≤0.5 | |
| Hydrazine(ppm) | ≤1 | |
