Crystal structures of two hydrazide derivatives of mefenamic acid, 3-(2,3-dimethylanilino)-<i>N</i>′-[(<i>E</i>)-(furan-2-yl)methylidene]benzohydrazide and <i>N</i>′-[(<i>E</i>)-benzylidene]-2-(2,3-dimethylanilino)benzohydrazide
Acta crystallographica. Section E, Crystallographic communications