Ammonium 2-aminopyrazine-3-carboxylate

Abstract

The title compound NH4+·C5H4N3O2− crystallizes with two formula units in the asymmetric unit. In each anion, the carboxylate is deprotonated and the planar amino group [angle sums of 359 (3) and 355 (3)° at N] remains protonated. In the crystal, the cations and anions are bridged by N—H...O and N—H...N hydrogen bonds, forming a three-dimensional network.