(-)-Florfenicol CAS NO.76639-94-6

1.Product nameFlorfenicol 2.CAS#76639-94-6 3.Molecular formulaC12H14Cl2FNO4S 4.Purity98% min Product name FlorfenicolCAS#76639-…

1.Product nameFlorfenicol2.CAS#76639-94-6 3.Molecular formulaC12H14Cl2FNO4S 4.Purity98% min Product name Florfenicol CAS#76639-94-6 Molecular formula C12H14Cl2FNO4S Purity 98% min AppearanceWhite to almost white crystalline UsageAnimal Pharmaceuticals Packing25kg per drum DeliveryWithin one week after payment done. Specifications  ItemStandardResultAppearanceWhite or almost white crystalline powder Almost white crystalline powderMelting point152-156°C154.6-155.1°CSpecific optical rotation -16° to -19° -17.5°Identification(1)The retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation,as obtained in the assay.Complies(2)UV absorption Max. at 266nm.Complies(3)IR spectra is consistent with CRS.CompliesPH4.5-6.55.7Chloride 0.02% max<0.02%Fluorides4.8%min4.9%Related substancesIndividual impurity not more than 0.5% 0.35%Total impurities not more than 2.0%0.76%Water0.5% max0.13%Residue on ignition0.1%max0.06%Heavy metalsLess than or egual to 20 millionthsLess than20 millionthsAssay(C12H14Cl2FNO4S)98.0%min99.0%