Molecular formula: C19H17N5O7S3.HCl Molecular weight: 560.01 Quality specification :Export Standard Appcarance: Primrose Yellow Powder Solubility: Soluble in DMF Relatod substances: 4-Koto-ceftiofur:0.09% MW=537 lmpurity:0.29% 8-3-cis-oximc:0.17% 8-trans-oximc:0.51% Total impurities:1.10% Water:2.13% PH:2.37 Absorbance:0.260A Spcciflc rotalion:-119 . Residue on lgnition:0.06% Assay:Ceftiofur Hydrochloride:99.70%( HPLC ) Packing:1KG,6KG/Aluminum Tin