ethyl-2-oxobicyclo[2.2.1]heptane-7-anti-carboxylic acid, C10H14O3, cry
stallizes in space group P4(1) and forms intermolecular carboxyl-to-ke
tone hydrogen-bonded chains (catemers). The hydrogen-bonded chains are
orthogonal to the 4(1) screw axis and involve translationally related
molecules.