盐酸左西替利嗪ProuductName盐酸左西替利嗪CASNo.130018-87-0StructureMolecularFormulaC21H25ClN2O3·2HClMolecularWeight461.81Descriptionwhiteoroff-whitesolidIdentification(FT-IR)c***istentwithreference1HNMRc***istentwithreferenceAssayMinimum99.0%RelatedSubstances(HPLC)Maximum1.0%ChiralPurity(HPLC)Minimum99.5%Isomer(HPLC)Maximum0.5%LossondryingMaximum2.0%ResidueonIgnitionMaximum0.2%He***ymetalsMaximum10ppmProductUseAnti-allergyAPI)