3,3′-Dihydroxy-6,6′-bis(hydroxymethyl)-2,2′-(pentane-1,1-diyl)di-4H-pyran-4-one

Abstract

In the title molecule, C17H20O8, the two pyran rings form a dihedral angle of 61.2 (2)°. The two hydroxymethyl groups are each disordered over two sets of sites in a 0.764 (3):0.236 (3) ratio. In the crystal, O—H...O hydrogen bonds link the molecules into layers parallel to the ac plane.