Knapp Warren R, Laduca Robert L
Lyman Briggs College, Department of Chemistry, Michigan State University, East Lansing, MI 48825, USA.
Acta Crystallogr Sect E Struct Rep Online. 2008 Jun 28;64(Pt 7):o1347. doi: 10.1107/S1600536808018588.
In the title compound, C(11)H(10)N(2)O(2), individual mol-ecules lie across crystallographic twofold rotation axes. Neighboring mol-ecules engage in O-H⋯N hydrogen bonding, forming square-grid layers parallel to the ab plane.