16470-45-4 Anhydro-4,5,4',5'-dibenzo-9-ethyl-3,3'-bis(gamma-sulfopropyl)-2,2'-thiacarbocyanine hydroxide, sodium salt EINECS 240-525-4 Hydrogen -1-(3-sulphonatopropyl)-2-(2-((1-(3-sulphonatopropyl)naphtho(1,2-d)thiazol-2(1H)-ylidene)methyl)-1-butenyl)naphtho(1,2-d)thiazolium, sodium salt Naphtho(1,2-d)thiazolium, 1-(3-sulfopropyl)-2-(2-((1-(3-sulfopropyl)naphtho(1,2-d)thiazol-2(1H)-ylidene)methyl)-1-butenyl)-, inner salt, sodium salt