label: 2,2'-[propane-1,3-diylbis(piperidine-4,1-diylethane-2,1-diyl)]bis(10-methoxy-7H-pyrido[4,3-c]carbazol-2-ium)
label_lc: 2,2'-[propane-1,3-diylbis(piperidine-4,1-diylethane-2,1-diyl)]bis(10-methoxy-7h-pyrido[4,3-c]carbazol-2-ium)