CAS number： 1981-58-4
Molecular formula： C12H13N4NaO2S
molecular weight： 300.312
Chemical structure：
| PRODUCT | Sulfamethazine Sodium/Sulfadimidine Sodium/Sulphadimidine Sodium | |
| Shelf Life | 3 years | |
| INSPECTION ITEM | STANDARD | RESULTS OF ANALYSIS |
| DESCRIPTION | WHITE OR ALMOST WHITE CRYSTALLINE OR POWDER | CONFORMS |
| IDENTIFICATION | PASS IR POSITIVE REACTION | POSITIVE REACTION |
| MELTING POINT | 197 —200°C | 197-198°C |
| ACIDITY | PH=10-11 | 10.68 |
| COLOUR OF SOLUTION | ≤Y4 | ＜Y4 |
| RELATED SUBSTANCES | ≤0.5% | ＜0.5% |
| LOSS ON DRYING | ≤2.0% | 0.78% |
| ASSAY | 98.0%-101.0% | 99.54% |
| CONCLUSION: THE ABOVE-MENTIONED PRODUCT CONFORMS TO BP2002 | ||
