7,7,18,18-Tetraethyl-7,18-diazoniatetracosylenebis(triethylammonium) tetraiodide 77967-22-7 AMMONIUM, 7,7,18,18-TETRAETHYL-7,18-DIAZONIATETRACOSYLENEBIS(TRIETHYL-, TETRAIOD Ammonium, 7,7,18,18-tetraethyl-7,18-diazoniatetracosylenebis(triethyl-, tetraiodide