IUPAC:potassium 3-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-1,1-dimethyl-6-sulfo-2-[(1E)-2-[(3E)-3-{2-[(2Z)-1,1,3-trimethyl-8-sulfo-6-sulfonato-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1H-benzo[e]indol-3-ium-8-sulfonate
IUPAC:potassium 3-{6-[(2,5-dioxopyrrolidin-1-yl)oxy]-6-oxohexyl}-1,1-dimethyl-6-sulfo-2-[(1E)-2-[(3E)-3-{2-[(2Z)-1,1,3-trimethyl-8-sulfo-6-sulfonato-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}cyclohex-1-en-1-yl]ethenyl]-1H-benzo[e]indol-3-ium-8-sulfonate