IUPAC:tripotassium 3-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-1,1-dimethyl-2-[(1E,3E)-5-[(2Z)-1,1,3-trimethyl-6,8-disulfonato-1H,2H,3H-benzo[e]indol-2-ylidene]penta-1,3-dien-1-yl]-1H-benzo[e]indol-3-ium-6,8-disulfonate
IUPAC:tripotassium 3-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-1,1-dimethyl-2-[(1E,3E)-5-[(2Z)-1,1,3-trimethyl-6,8-disulfonato-1H,2H,3H-benzo[e]indol-2-ylidene]penta-1,3-dien-1-yl]-1H-benzo[e]indol-3-ium-6,8-disulfonate