| Appearance | White powder |
| 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 |
| Loss on drying | Not more than 5.0% |
| Heavy metals | 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% |
| Assay | Conform to USP30 |
Vitamin B5
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