Norgestrel6533-00-2100 % similar Levonorgestrel797-63-7100 % similar Norethindrone68-22-473 % similar Etonogestrel54048-10-171 % similar Gestodene60282-87-365 % similar Norethandrolone52-78-858 % similar 13-Ethylgon-4-ene-3,17-dione21800-83-953 % similar (±)-13β-Ethylgon-4-ene-3,17-dione23477-67-053 % similar Methylnortestosterone514-61-453 % similar Norgestimate35189-28-753 % similar Norethisterone acetate51-98-952 % similar Gestonorone2137-18-050 % similar Norethisterone enanthate3836-23-549 % similar Nandrolone434-22-049 % similar Desogestrel54024-22-549 % similar Lynestrenol52-76-648 % similar (+)-Estr-4-ene-3,17-dione734-32-748 % similar Gestrinone16320-04-047 % similar Ethisterone434-03-746 % similar Nandrolone propionate7207-92-344 % similar