左炔诺孕酮EP杂质G 货号:L005007 英文名:Levonorgestrel EP Impurity G 同义词:(6S,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one CAS号:87585-03-3 分子式:C21H28O3 分子量:328.45 询价订购