Sulphadimethoxine Base

CAS number: 155-91-9

Molecular formula: C12H14N4O4S

molecular weight: 310.329

Chemical structure:

Product Name
SULPHADI METHOXI NE  BASE
Shelf Life
4 years
Item
Specification
Result
Description

White or creamy- whi t e Crystalline powder

White or creamy- white Crystalline powder
Solubility
Soluble in 2N sodium hydroxide; sparingly soluble in 2Nhydrochroric acid; slightly soluble in alcohol, in ether, in chloroform, and in hexane; practically insoluble in water
conforms
Identification
Positive
Positive
Acidity
0.1M NaOH≤0.1ml/0.5gConforms
Clarity and color of solution
Clear ≤BY5Conforms
Melting point
198-204℃198.0-199.3℃
Heavy metals
≤20ppm<20ppm
Related substances
Conforms to BP1988
Conforms to BP1988
Loss on drying
≤0.5%0.29%
Sulfated ash
≤0.1%0.07%
Assay99.0%-101.0%99.41%
Conclusion: The above product conforms to USP30.