1-Ethyl-4-((3-ethyl-3H-benzothiazol-2-ylidene)methyl)quinolinium iodide 15941-82-9 57282-58-3 Cyanine dye 7 EINECS 240-075-9 L-Lysine, N2-(N2-(N2-L-lysyl-L-lysyl)-L-lysyl)-, hydrochloride