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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.