左炔诺孕酮杂质32 货号:L005032 英文名:Levonorgestrel Impurity 32 同义词:(8R,9S,13S,14S)-13-ethyl-3-hydroxy-7,8,9,11,12,13,15,16-octahydro-6H-cyclopenta[a]phenanthren-17(14H)-one CAS号:6544-68-9 分子式:C19H24O2 分子量:284.39 询价订购