SPECIFICATION
| Appearance | white crystals or crystalline powder |
| Acidity or alkalinity | Passes the test |
| Toluene sulphonamides | ≤0.0025% |
| Benzoate and salicylate | Passes test |
| Readily carbonisable substance | Passes test |
| Lead | ≤2mg/kg |
| Selenium | ≤0.003% |
| Water | ≤15.0% |
| Assay | 98.0%-101.0% |
MOLECULAR STRUCTURE:

Molecular Formula:C7H4NNaO3S·2H2O




