NorethisteroneAcetateCASNo:51-98-9skype:edisonxu0907Use:Progesteronedrugs,forirregularmenstruation,functionaluterinebleeding,endometriosis.EINECSNO:200-132-0Molecularformula:C22H28O3Molecularweight:340.46Appearance:WhiteorAlmostWhiteCrystallinePowderAssay(byHPLC):98.00%minLossOnDrying:0.5%maxResidueOnIgnition:0.1maxPacking:1kgs/foilbag)