3-Hydroxy-7,8-dimethoxyquinolin-2(1H)-one

Abstract

In the crystal structure of the title compound, C11H11NO4, intramolecular O—H...O hydrogen bonding results in the formation of a planar five-membered ring, which is nearly coplanar with the quinoline group. Intermolecular N—H...O hydrogen bonds link the molecules into centrosymmetric dimers.