Melengestrol acetate2919-66-630 % similar (4aR,4bS,6aS,7S,9aS,9bS,11aR)-4a,6a-dimethyl-2-oxohexadecahydro-1H-indeno[5,4-f]quinoline-7-carboxylic acid103335-55-330 % similar Algestone595-77-730 % similar 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylic acid104239-97-630 % similar Ethisterone434-03-730 % similar