英文同义词: | 17α-Ethynyl-18-methylestra-3,5-diene-3,17β-diol Diacetate;Norgestimate Impurity 9;LEVONORGESTREL DIACETATE;13-ethyl-3,17-diyl diacetate-18,19-dinor-17a-pregna-3,5(6)-dien-20yn;18,19-Dinorpregna-3,5-dien-20-yne-3,17-diol, 13-ethyl-, 3,17-diacetate, (17α)- |