外观 | 白色粉末 |
Identification Infrared absorption 197K | Concordant with reference spectrum |
Identification A solution (1 in 20) responds to the tests for calcium | Conform to USP30 |
Specific optical rotation | +25.0°~+27.5° |
Alkalinity | No pink color is produced within 5 seconds |
干燥损失 | Not more than 5.0% |
重金属 | Not more than 0.002% |
Ordinary impurities | Not more than 1.0% |
Organic volatile impurities | Meet the requirements |
Nitrogen content | 5.7%~6.0% |
Content of calcium | 8.2~8.6% |
化验 | Conform to USP30 |
维生素 B5
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