Etynodiol Diacetate (USP)

Chemical Name: (3S,8R,9S,10R,13S,14S,17R)-17-Ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,17-diyl diacetate

Smile: C[C@@]12[C@@](C#C)(OC(C)=O)CC[C@@]1([H])[C@]3([H])CCC4=C[C@@H](OC(C)=O)CC[C@]4([H])[C@@]3([H])CC2