Gestrinone16320-04-0100 % similar Methyltrienolone965-93-555 % similar Trendione4642-95-948 % similar Norgestrel6533-00-247 % similar Levonorgestrel797-63-747 % similar Etonogestrel54048-10-143 % similar Norethindrone68-22-443 % similar (17β)-17-[(1-Oxoheptyl)oxy]estra-4,9,11-trien-3-one1629618-98-942 % similar (17β)-17-[[(Cyclohexylmethoxy)carbonyl]oxy]estra-4,9,11-trien-3-one23454-33-339 % similar Dienogest65928-58-739 % similar Ethisterone434-03-738 % similar Mifepristone84371-65-337 % similar 17β-Hydroxyestra-4,9-dien-3-one6218-29-737 % similar Trimegestone74513-62-537 % similar Gestodene60282-87-336 % similar Estra-4,9-diene-3,17-dione5173-46-636 % similar Norethandrolone52-78-832 % similar Desogestrel54024-22-532 % similar Norethisterone acetate51-98-931 % similar Tibolone5630-53-531 % similar