Anorethidrane 2-alpha,17-alpha-diethynyl-a-nor-5-alpha-androstane-2-beta,17-beta-diol dipro 2-epsilon,17-alpha-diethynyl, a-nor-androstane-2-epsilon, 17-beta-dihydroxydi af-53 alpha-anordrin a-norpregn-20-yne-2,17-diol, 2-ethynyl-, dipropanoate, (2-beta,5-alpha,17-alpha pionate (17R)-2α-Ethynyl-A-nor-5α-pregn-20-yne-2β,17-diol dipropionate