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Acta Cryst. (2006). E62, o4224-o4225 [ doi:10.1107/S1600536806034611 ]
Abstract: The title compound, C7H7NO4, crystallizes with two molecules in the asymmetric unit. The nitro groups are twisted slightly out of the planes of the benzene rings by 8.5 (2) and 4.4 (2)°. The crystal packing is stabilized by O-H
O and C-H
O hydrogen bonds.
Online 6 September 2006
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