Acta Cryst. (2008). E64, o1944 [ doi:10.1107/S1600536808029176 ]
Abstract: In the title compound, C8H7N5O2, the benzene ring makes a dihedral angle of 45.7 (2)° with the tetrazole ring. In the crystal structure, the molecules are linked into a chain running along the a axis by N-HN hydrogen bonds, and the chains are linked through - interactions between the tetrazole rings [centroid-centroid distance = 3.450 (2) Å].
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