title: 2-Amino-anilinium 6-carb-oxy-picolinate monohydrate.
abstract: In the title compound, C(6)H(9)N(2) (+)·C(7)H(4)NO(4) (-)·H(2)O, one amino group of diamino-benzene is protonated while one carb-oxy group of pyridine-2,6-dicarb-oxy-lic acid is deprotonated. In the anion, the CO(2) and CO(2)H groups make dihedral angles of 4.0 (5) and 8.7 (4)° with the pyridine ring. In the crystal, extensive N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonds occur between anions, cations and water mol-ecules.
authors.forename: Yu-Tang
authors.initials: YT
authors.lastname: Wang
authors.forename: De-Jiang
authors.initials: DJ
authors.lastname: Gao
references.citation: Acta Crystallogr C. 2000 Sep;56 ( Pt 9):1155-6
references.pmid: 10986516
references.citation: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references.pmid: 18156677