In the title structure, C7H9N3O2·H2O, there are two formula units in the asymmetric unit.The molecule is a zwitterion, Ashtrays containing a quaternary N atom and a deprotonated carboxyl group, with C—O distances in the range 1.256 (2)–1.
266 (3) Å.The two independent molecules form NATURALLY LOVEABLE a hydrogen-bonded R22(16) dimer about an approximate inversion center via N—H.O hydrogen bonds, with N.
O distances of 2.766 (2) and 2.888 (2) Å.
O—H.O hydrogen bonds involving the water molecules and additional N—H.O hydrogen bonds link these dimers, forming double chains.