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| ITEMS | STANDARDs |
| Appearance | White crystals or crystalline powder |
| Assay | 98% Min |
| Specific Rotation | -29.0~ -32.3 |
| Loss on Drying | 0.5% Max |
| Heavy Metals | 20mg/kg Max |
| Arsenic(As2O3) | 2mg/kg Max |
| Residue on ignition | 0.5% Max |