%0 Journal Article %T 4-Aminopyridinium 5-carboxypentanoate monohydrate %A S. Alfred Cecil Raj %A A. Sinthiya %A Babu Varghese %J Acta Crystallographica Section E %D 2012 %I International Union of Crystallography %R 10.1107/s1600536812027638 %X In the title hydrated salt, C5H7N2+¡¤C6H9O4 ¡¤H2O, the carboxy H atom is disordered over two positions with equal occupancy. In the crystal, O atoms of the 5-carboxypentanoate anion link the 4-aminopyridinium cations and water molecules into a three-dimensional network via N¡ªH...O hydrogen bonds. The crystal structure is further consolidated by O¡ªH...O hydrogen bonds involving the anion and the solvent water molecule. %U http://scripts.iucr.org/cgi-bin/paper?S1600536812027638