Benzene-1,2,4,5-tetrol

The crystal structure of the title compound was determined at 120 K. It crystallizes in the triclinic space group P\overline{1} with four independent molecules in the asymmetric unit. In the crystal, each symmetry-unique molecule forms π–π stacks on itself, giving four unique π–π stacking interactions. Intermolecular hydrogen bonding is observed between each pair of independent molecules, where each hydroxy group can act as a hydrogen-bond donor and acceptor.