5-Amino-2,4,6-triiodoisophthalic acid monohydrate

The title compound, C(8)H(4)I(3)NO(4)·H(2)O, shows an extensive hydrogen-bond network; in the crystal structure, mol-ecules are linked by O-H⋯O, N-H⋯O and O-H⋯N hydrogen bonds involving all possible donors and also the water mol-ecule.