6-((E)-2-((e)-3-(3-Ethylbenzo[d]oxazol-3-ium-2-yl)allylidene)benzo[d]oxazol-3(2H)-yl)hexanoate

This compound is a cyanine dye intermediate featuring a benzoxazole-based polymethine chromophore with an anionic hexanoate side chain. It is primarily used in the synthesis of fluorescent dyes.