Etonogestrel54048-10-1100 % similar Desogestrel54024-22-572 % similar Norgestrel6533-00-271 % similar Levonorgestrel797-63-771 % similar Norethindrone68-22-456 % similar Gestodene60282-87-350 % similar Norethandrolone52-78-844 % similar Gestrinone16320-04-043 % similar Ethisterone434-03-741 % similar Norethisterone acetate51-98-940 % similar 13-Ethylgon-4-ene-3,17-dione21800-83-940 % similar (±)-13β-Ethylgon-4-ene-3,17-dione23477-67-040 % similar Methylnortestosterone514-61-440 % similar Norgestimate35189-28-740 % similar Norethisterone enanthate3836-23-539 % similar Gestonorone2137-18-038 % similar Nandrolone434-22-037 % similar Lynestrenol52-76-636 % similar (+)-Estr-4-ene-3,17-dione734-32-736 % similar Nandrolone propionate7207-92-335 % similar