(2008/06/13)
4-{2-[(1E,3E)-4-anilinobuta-1,3-dienyl]-3,3-dimethyl-5-sulfo-3H-indolium-1-yl}butane-1-sulfonate
4-{2-[(1E,3E)-4-anilinobuta-1,3-dienyl]-3-(5-carboxypentyl)-3-methyl-5-sulfo-3H-indolium-1-yl}butane-1-sulfonate
4-{2-[(1E,3E)-4-anilinobuta-1,3-dienyl]-5-chloro-3,3-dimethyl-3H-indolium-1-yl}butane-1-sulfonate
1-(5-carboxypentyl)-2-[(1E,3E)-5-(1-ethyl-3,3-dimethyl-5-sulfo-1,3-dihydro-2H-indol-2-ylidene)-1,3-pentadienyl]-3,3-dimethyl-5-sulfo-3H-indolium
1-(5-carboxypentyl)-3-methyl-2-((1E,3E)-4-phenylamino-buta-1,3-dienyl)-5-sulfo-3-(3-sulfopropyl)-3H-indolium