SPECIFICATION
| Appearance | Slightly yellow crystal powder |
| Assay | 99.0-101.0% |
| Residue on ignition | <0.1% |
| Loss on drying | ≤0.2% |
| Heavy metals | ≤10ppm |
| Chromatographic purity： | |
| Individual impurity | < 0.1% (HPLC) |
| Total impurities | < 2.0% (HPLC) |
| Melting range | 60.0℃- 62.0℃ |
| Optical rotation | -1.0°- +1.0° |
MOLECULAR STRUCTURE：
Molecular Formula:C8H14O2S2
