3α,4β-Dihydroxy-5α-androstan-17-one

The ring conformation of the title compound, 3α,4β-dihydroxy-5α-androstan-17-one, C₁₉H₃₀O₃, is similar to that of the 5β-epimer except for the trans A/B ring junction and the geometry of ring D, which adopts a slightly deformed 13,14-half-chair conformation instead of the more common 14α-envelope conformation. The molecules are linked together by a two-dimensional network of hydrogen bonds involving the carbonyl and hydroxyl groups.

-1