O-Benzoquinone dioxime

Abstract

The title compound, C6H6N2O2, was obtained as a product of an in vitro study of the metabolism of benzofuroxan. The molecule exhibits a amphi configuration of the oxime groups C=N - OH. One oxime group is involved in the formation of a strong intra-molecular O - H⋯N hydrogen bond, while another links mol-ecules into zigzag chains along the c axis via inter-molecular O - H⋯N hydrogen bonds.