Acta Cryst. (2009). C65, o217-o221 [ doi:10.1107/S0108270109012530 ]
Formula: C4H7N2+·C4H5O4-, C4H7N2+·C5H7O4- and C4H7N2+·C6H9O4-·H2O
Online 10 April 2009
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