Molecular Formula: C19H17N5O7S3稨Cl

Molecular Weight:554.53

CAS NO: 103980-44-5

Standards:Enterprise standard

Character: off-white crystalline powder. Assay（HPLC）(on anhydrous):≥98.0%; Parical size: 90%〈10UM；Identification: HPLC complies with the standard; Absorbance:≤0.500A; pH:2.0?.0; Walter(K.F.):≤6.0%; Suiphated ash:≤0.5﹪; 4-keto-ceftiofur:≤0.5%; MW=537 impurity:≤0.4%;δ-3-cis-oxime:≤0.3%；δ-3-anti-oxime：2.0%；Total imperities:≤2.0%;