IUPAC:11-{4-[(2,5-dioxopyrrolidin-1-yl)oxy]-4-oxobutyl}-1-ethyl-10,10-dimethyl-8-(sulfonatomethyl)-1,2,3,4,10,11-hexahydro-13lambda4-oxa-1,6,11-triazapentacen-13-ylium
IUPAC:11-{4-[(2,5-dioxopyrrolidin-1-yl)oxy]-4-oxobutyl}-1-ethyl-10,10-dimethyl-8-(sulfonatomethyl)-1,2,3,4,10,11-hexahydro-13lambda4-oxa-1,6,11-triazapentacen-13-ylium