Sulfamethazine

CAS number：57-68-1

Molecular formula：C12H14N4O2S

molecular weight：278.33

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