Acta Cryst. (2005). E61, o2596-o2598 [ doi:10.1107/S1600536805022257 ]
Abstract: The title compound, C20H10Cl2N2O2, is one of the quinacridone derivatives known as a red pigment. The molecule has inversion symmetry. The quinacridone molecules are connected by bifurcated N-HO hydrogen bonds along  to form a two-dimensional hydrogen-bond network.
Online 16 July 2005
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