左炔诺孕酮杂质30 货号:L005030 英文名:Levonorgestrel Impurity 30 同义词:(8R,9S,13S,14S,17R)-13-ethyl-17-ethynyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol CAS号:14012-72-7 分子式:C21H26O2 分子量:310.43 询价订购