CAS number： 57-68-1
Molecular formula： C12H14N4O2S
molecular weight： 278.32
Chemical structure：
| PRODUCT | Sulfamethazine Base/Sulfadimidine/Sulphadimidine | |
| SHELF LIFE | 3 years | |
| INSPECTION ITEM | STANDARD | RESULTS OF ANALYSIS |
| CHARACTERISTICS | WHITE OR ALMOST WHITE CRYSTALLINE OR POWDER | CONFORMS |
| IDENTIFICATION | PASS IR POSITIVE REACTION | POSITIVE REACTION |
| MELTING POINT | 197 —200°C | 197-198°C |
| ACIDITY | ≤0.1mol/L NaOH 0.2ml | ＜0.2ml |
| COLOUR OF SOLUTION | ≤Y5BY5GY5 | ＜Y5BY5GY5 |
| HEAVY METALS | ≤20PPM | ＜20PPM |
| RELATED SUBSTANCES | ≤0.5% | ＜0.5% |
| LOSS ON DRYING | ≤0.5% | 0.10% |
| SULPHATED ASH | ≤0.1% | 0.06% |
| ASSAY | ≥99.0% | 99.42% |
| CONCLUSION: THE ABOVE-MENTIONED PRODUCT CONFORMS TO BP2007 | ||
