In the crystal structure of the title compound, C(6)H(6)NO(2) (+)·NO(3) (-), the protonated cations are linked by N-H⋯O hydrogen bonds into chains along the b axis. The cations and anions are also linked by N-H⋯O and O-H⋯O hydrogen bonds. C-H⋯O inter-actions also occur. In the cation, the ring makes a dihedral angle of 10.1 (3)° with the carboxylate group.
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