Metrodiol diacetate, Ethinodiol diacetate, Ovulen, Continuin, Metrodiol, Femulen, Cervicundin, ETHYNODIOL DIACETATE, 3β,17β-Diacetoxy-17α-ethynyl-4-estrene, 17a-Ethynyl-4-estren-3b,17-diol diacetate, [(3S,8R,9S,10R,13S,14S,17R)-17-acetyloxy-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate, Luto-metrodiol, Ovulen 50