cyanine dyes

https://doi.org/10.1351/goldbook.C01487
Synthetic dyes with the general formula R2N[CH=CH]nCH=N+R2\(\leftrightarrow\) R2N+=CH[CH=CH]nNR2 (n is a small number) in which the nitrogen and part of the conjugated chain usually form part of a heterocyclic system, such as imidazole, pyridine, pyrrole, quinoline and thiazole, e.g.
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Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1329 [Terms] [Paper]
Citation: 'cyanine dyes' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.C01487 RIS BibTex EndNote
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Last revised: February 24, 2014