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The title compound, C12H12N12O3, was obtained by the hydrothermal reaction of 1,3,5-tricyanomethoxybenzene and (CH3)3SiN3. The molecule is almost planar, with an r.m.s. deviation of 0.0976 Å from the plane through all atoms in the molecule. The three tetrazole rings make dihedral angles of 13.09 (19), 2.01 (19) and 11.56 (18)° with one another and corresponding angles of 8.66 (17), 5.44 (16) and 3.51 (17)° with the central benzene ring. In the crystal structure, intermolecular N—H...N hydrogen bonds form well separated one-dimensional planar sheets.