Acta Crystallogr Sect E Struct Rep Online. 2012 Jan;68(Pt 1):o72. doi: 10.1107/S1600536811051798. Epub 2011 Dec 10.


In the title compound, C(12)H(11)N(3)O(2), the benzotriazole ring system is approximately planar [maximum deviation = 0.008 (1) Å] and its mean plane is oriented at a dihedral angle of 24.05 (4)° with respect to the furan ring. In the crystal, O-H⋯N hydrogen bonds link the mol-ecules into chains along the ac diagonal. π-π stacking between the furan rings, between the triazole and benzene rings, and between the benzene rings [centroid-centroid distances = 3.724 (1), 3.786 (1) and 3.8623 (9) Å] are also observed.