左炔诺孕酮EP杂质H 货号:L005008 英文名:Levonorgestrel EP Impurity H 同义词:(6R,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:55555-97-0 分子式:C21H28O3 分子量:328.45 询价订购