19-Nor-17a-pregna-1,3,5(10)-trien-20-yne-3,17-diol,3-(2-propanesulfonate) (8CI); 2-Propanesulfonic acid, 17-hydroxy-19-nor-17a-pregna-1,3,5(10)-trien-20-yn-3-ylester (8CI); J 96; Turisteron
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