19-Nor-17a-pregn-5-en-20-yn-17-ol(7CI,8CI); 17a-Ethynyl-17b-hydroxyestr-5-ene; 17a-Ethynyl-5-estren-17-ol; 17a-Ethynyl-5-estren-17b-ol; 17a-Ethynyl-5-oestren-17b-ol; Cingestol; Lutisan
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