Ramos, S. S. published the artcileSome new symmetric rigidified triheterocyclic heptamethinecyanine dyes absorbing in the near infrared, Computed Properties of 606-55-3, the publication is Dyes and Pigments (2002), 53(2), 143-152, database is CAplus.
Several new rigidified heptamethine cyanine dyes bearing different N-alkyl chains were readily prepared by a novel semi-catalyzed method. All dyes displayed absorption within the so-called “phototherapeutic window”. In order to improve the structural versatility of the dyes, a Cl atom was incorporated in the exocyclic conjugated bridge present in the polymethine chain. In some cases the Cl underwent an unexpected in-situ substitution by a third oxygenated heterocyclic group, depending on the solubility of the chloro dye in the reaction solvent. Two possible mechanisms for the formation of these triheterocyclic dyes are proposed. The full spectroscopic characterization of all the cyanines synthesized is described.
Dyes and Pigments 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