Crystal structures of two polymorphs of tixocortol pivalate

Two polymorphs, (I) and (II), of (S)-{2-[(8S,9S,10R,11S,13S,14S,17R)-11,17-dihy­droxy-10,13-dimethyl-3-oxo-2,6,7,8,9,11,12,14,15,16-deca­hydro-1H-cyclo­penta­[a]phenanthren-17-yl]-2-oxoeth­yl} 2,2-di­methyl­propane­thio­ate, C(26)H(38)O(5)S, have been identified. They are ortho­rhom­bic, non-centrosymmetric (P2(1)2(1)2(1)). The structures display layers of mol­ecules conected via O—H⋯O hydrogen bonds along the b-axis direction in polymorph (I) and along the c-axis direction in polymorph (II). The structure of (II) exhibits disorder of the main mol­ecule.