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Co-crystallization of N'-benzyl-idene-pyridine-4-carbohydrazide and benzoic acid via autoxidation of benzaldehyde

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The 1:1 co-crystal N'-[(2-methyl-phen-yl)methyl-idene]pyridine-4-carbohydrazide-benzoic acid (1/1), C13H11N3O·C7H6O2, formed unexpectedly after autoxidation of benzaldehyde during the slow evaporation process of a solution of isoniazid in benzaldehyde. The or... ...