Abu El-Hamd, Ragab M. published the artcileStudies on absorption spectra of newly synthesized cyanine dyes, Computed Properties of 606-55-3, the publication is Indian Journal of Heterocyclic Chemistry (1996), 5(4), 297-304, database is CAplus.
New asym. monomethine cyanines (I; R = H, Ph; X = NH, CH2; A = H, C4H4; Z = H, C4H4), trimethine cyanines (II; X = NH, CH2; A = H, C4H4; Z = H, C4H4), and styryl cyanines (III; R = H, OMe, NO2; X = NH, CH2; A = H, C4H4) were synthesized to study their spectral behavior, solvatochromism, mixed solvents and acid-base properties. These dyes are characterized by elemental anal., IR, 1H NMR, and electronic absorption spectra.
Indian Journal of Heterocyclic Chemistry published new progress about 606-55-3. 606-55-3 belongs to iodides-buliding-blocks, auxiliary class Quinoline,Salt, name is 1-Ethyl-2-methylquinolin-1-ium iodide, and the molecular formula is C12H14IN, Computed Properties of 606-55-3.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com