Low-temperature redetermination of trans-cyclo­hexane-1,2-dicarboxylic acid

摘要

The mol­ecule of the title compound, C8H12O4, lies on a twofold rotation axis that passes through the mid-points of two opposite C—C bonds of the ring. Carboxyl groups of adjacent mol­ecules are linked by pairs of hydrogen bonds around a centre of inversion; this inter­action gives rise to a chain that runs along [101].