| Quality Standard | |
| Appearance | a white crystalline powder |
| Melting Point | 185 to 190 °C |
| Specific Rotation | + 17.5° to + 19.1°(c=3% in water) |
| Infra-red Spectrum | comparable to the standard spectrum |
| Ultraviolet Spectrum | Max. absorbance at 206+2nm & 207+2nm |
| Solution | a clear colorless solution in water |
| Loss of Drying | Max. 0.5% |
| Residue on Ignition | Max. 0.2% |
| Heavy Metal | Max. 10ppm |
| Assay(HPLC) | > 99.0% |
| UV | 97% to 100% (on the dried basis) |
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