IUPAC:3-[(4-carboxyphenyl)methyl]-2-[(1E)-2-[(3E)-3-{2-[(2Z)-3-[(4-carboxyphenyl)methyl]-1,1-dimethyl-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}-2-chlorocyclohex-1-en-1-yl]ethenyl]-1,1-dimethyl-1H-benzo[e]indol-3-ium
IUPAC:3-[(4-carboxyphenyl)methyl]-2-[(1E)-2-[(3E)-3-{2-[(2Z)-3-[(4-carboxyphenyl)methyl]-1,1-dimethyl-1H,2H,3H-benzo[e]indol-2-ylidene]ethylidene}-2-chlorocyclohex-1-en-1-yl]ethenyl]-1,1-dimethyl-1H-benzo[e]indol-3-ium