The molecule is a cyanine dye and an organic potassium salt. It has a role as a fluorochrome. It contains a NIR-3(2-).
dipotassium;(2Z)-2-[(2E,4E,6E)-7-[5-carboxy-3,3-dimethyl-1-(4-sulfonatobutyl)indol-1-ium-2-yl]hepta-2,4,6-trienylidene]-3,3-dimethyl-1-(4-sulfonatobutyl)indole-5-sulfonate