Finasteride98319-26-7100 % similar 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylic acid104239-97-672 % similar Dutasteride164656-23-962 % similar 3-Oxo-4-aza-5α-androstane-17β-carboxylic acid103335-55-341 % similar 3α-Hydroxy-5α-pregnan-20-one516-54-134 % similar Isopregnanolone516-55-234 % similar 5α-Androst-1-ene-3β,17β-diol5323-27-334 % similar 5α-Dihydroprogesterone566-65-432 % similar (17β)-3-Oxoandrost-4-ene-17-carboxylic acid302-97-632 % similar Progesterone57-83-030 % similar