The mol-ecule of the title compound, C(9)H(5)Cl(2)NO, is essentially planar [give maximum or r.m.s. deviation] and the hydr-oxy group acts as a hydrogen-bond donor to the N atom of a symmetry-related mol-ecule, generating a hydrogen-bonded dimer,which lies on a twofold rotation axis.
* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.