| Items | Specifications | Result |
| Description, appearance | White powder or white-crystalline powdler. | white-crystalline powdler. |
| Solubility | Freely soluble in water, almost non-solublein 95% of Ethanol, aether or | Conform |
| IdentificationA | Conform | Conform |
| IdentificationB | Conform | Conform |
| IdentificationC | Conform | Conform |
| Solution colority | Conform | Conform |
| Loss on drying | 6.5-8.5% | 7.9% |
| Heavy metals | Pb: Not more than 10ppm | 7.4ppm |
Residue on ignition
(Cauteranttemperature less than 600ºC) | 30.5-33.0% | 30.9% |
| Substance related | Total impurities ≤5.0% | 3.2% |
| Residual solvent | Ethanol: Not more than 0.5% | 0.01% |
| Aetic acid: Not more than 0.5% | N.D |
| Assay | C3H7NAO3S3, not less than 98.0%,calculatedon the dried basis. | N.D |
| Conlusion | The product is tested qualifiedly according to Enterprise Internal Standard. | 98.6% |
Complaint
