11,11,18,18-Tetraethyl-11,18-diazoniaoctacosylenebis(triethylammonium) tetraiodide 77985-03-6 AMMONIUM, 11,11,18,18-TETRAETHYL-11,18-DIAZONIAOCTACOSYLENEBIS(TRIETHYL-, TETRAI Ammonium, 11,11,18,18-tetraethyl-11,18-diazoniaoctacosylenebis(triethyl-, tetraiodide