左炔诺孕酮杂质24 货号:L005024 英文名:Levonorgestrel Impurity 24 同义词:(8R,9S,13S,14R,17S)-13-ethyl-3-methoxy-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol CAS号:N/A 分子式:C20H28O2 分子量:300.44 询价订购