organic compounds
Open access
The crystal structure of the tetrabutylammonium salt of doubly deprotonated 4-aminomethyl(phenylamino)bis-(3,4-dichloro-5-phenylcarbamoyl-1H-pyrrole-2-carboxamide), 2C16H36N+·C32H22Cl4N6O42-, has been elucidated. The anion lies on an inversion centre and adopts a twisted S shape.