The title compound, C31H48O6, is a polyoxygenated ep#173;oxy steroid obtained by a multi-step synthesis involving oxidation of 7-de#173;hydro#173;cholesterol. It crystallizes in the P212121 space group; however, the absolute structure of the molecule in the crystal could not be determined by resonant scattering. The configuration at the C5 and C6 positions is in both cases of the #945;-type, as is that of the C atoms of the ep#173;oxy ring. Mol#173;ecules in the crystal form chains parallel to the b axis by hydrogen bonding between O#8212;H donors and carbonyl O-atom acceptors. Some atoms of the alkyl chain are disordered over two orientations, with a refined occupancy ratio of 0.511#8197;(10):0.489#8197;(10).
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