左炔诺孕酮EP杂质D 货号:L005004 英文名:Levonorgestrel EP Impurity D 同义词:(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-ol CAS号:32419-58-2 分子式:C21H30O 分子量:298.46 询价订购