地美环素EP杂质B 货号:D094001 英文名:Demeclocycline EP Impurity B 同义词:(4R,4aS,5aS,6S,12aS)-7-chloro-4-(dimethylamino)-3,6,10,12,12a-pentahydroxy-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide CAS号:14206-59-8 分子式:C21H21ClN2O8 分子量:464.85 询价订购