4-(2-(4-chloro-7-(3,3-dimethyl-1-(4-sulfonatobutyl)indolin-2-ylidene)-3.5-(propane-1,3-diyl)-1,3,5-heptatrien-1-yl)-3,3-dimethyl-3H-indolio)butanesulfonic acid
4-(2-(4-chloro-7-(3,3-dimethyl-1-(4-sulfonatobutyl)indolin-2-ylidene)-3.5-(propane-1,3-diyl)-1,3,5-heptatrien-1-yl)-3,3-dimethyl-3h-indolio)butanesulfonic acid