142154-46-9

17-EDDA-butenoate NorethindroneImpurity27 Norethindrone Related Compound 17-ethynyl-4-estrene-3,17-diol-3-acetate-17-(3'-acetoxy-2'-butenoate) 19-Norpregn-4-en-20-yne-3,17-diol, 3-acetate 17-[(2Z)-3-(acetyloxy)-2-butenoate], (3β,17α)- (9CI) [(8R,9S,10R,13S,14S)-3-acetyloxy-17-ethynyl-13-methyl-2,3,6,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl] (Z)-3-acetyloxybut-2-enoate