左炔诺孕酮EP杂质C 货号:L005003 英文名:Levonorgestrel EP Impurity C 同义词:(8R,9S,10R,13S,14S,17R)-13-ethyl-3,17-diethynyl-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol CAS号:1337972-89-0 分子式:C23H28O 分子量:320.47 询价订购