左炔诺孕酮EP杂质S 货号:L005019 英文名:Levonorgestrel EP Impurity S 同义词:(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-3-methoxy-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol CAS号:176254-10-7 分子式:C22H30O2 分子量:326.47 询价订购