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Acta Cryst. (2005). E61, o3069-o3070 [ doi:10.1107/S1600536805026863 ]
Abstract: There are two independent molecules, A and B, in the title compound, C16H18N4O4, and the asymmetric unit consists of one molecule A and one half-molecule B; a twofold axis runs through the centre of the N-N bond of molecule B. The crystal structure is stabilized mainly by van der Waals forces.
Online 31 August 2005
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