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The title compound, p-arsanilic acid, C6H7AsNO3, contains an As atom tetrahedrally coordinated to three O atoms and a C atom of the substituted benzene ring. The molecules are linked by an array of hydrogen bonds arising from three separate interactions formed between N and O atoms and one involving two O atoms. The molecule is in the zwitterionic form (i.e. p-ammoniophenylarsonate).

Supporting information


Crystallographic Information File (CIF)
Contains datablocks text, cf1008a

CCDC reference: 126920

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