C20H22N4O6S                             Mr446.5

CAS:58306-30-2

Chemical name: dimethyl N,N '-[[[2- (methoxyacetamido) -4- (phenylsulfanyl) phenyl] imino] methylene] dicarbamate

Standard: EP11 (European Pharmacopoeia 11)

【Characters 】 White or almost white crystalline powder.

【Identification】 Infrared absorption spectrophotometry.

【Test】

Related substance(HPLC): Impurity A, impurity B and impurity C: ≤0.1%; Unspecified impurities: ≤0.2%; Total impurities: ≤0.5%.

Solvent residue:  DMF, methanol

Loss on drying ≤0.5%.

Sulfated ash ≤0.1%.

【Assay】 According to the calculation of dry products, containing C20H22N4O6S should be 97.5%-102.0%.

Research and Development status: Pharmaceutical research is under way in accordance with veterinary drug regulations and guidelines.