| Summary: | In the title molecular salt, C6H10N3O+C7H5O3, the cation is protonated at the N atom lying between the amine and methyl substituents and the dihedral angle between the carboxyl group and its attached ring in the anion is 4.0 (2)�. The anion features an intramolecular O—HO hydrogen bond, which closes an S(6) ring. The cation and anion are linked by two N—HO hydrogen bonds [R2 2 (8) motif] to generate an ion pair in which the dihedral angle between the aromatic rings is 8.34 (9)�. Crystal symmetry relates two ion pairs bridged by further N—HO hydrogen bonds into a tetrameric DDAA array. The tetramers are linked by pairs of C—HO hydrogen bonds to generate [100] chains. Hirshfeld surface and fingerprint plot analyses are presented.
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