Specifications
| Item | Value |
|
| Solid powder |
| Appearance | white crystalline powder |
| identification | positive reaction |
| Purity | Melting point | 65.0-70.0°C |
| PH | 3.3-5.0 |
| Loss on dry | is not more than 0.5% |
| Heavy meatl | is not more than 0.002% |
| Ferric salt | is not more than 1ppm |
| Sulfate | is not more than 0.01% |
| Residue on ignition | is not more than 0.1% |
| Assay | the assay of C2H7NS•HCl should not be less than 99.0% |
Usage
It is an intermediate in the production of drugs such as cimetidine and ranitidine. Biochemical reagents, chelating agents for heavy metal ions, etc.