Cyanines
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Information for Authority record
Other Identifiers
Wikidata:
Q412922
Library of congress:
sh2019102894
DLC:
sh2019102894
LIBRARY_OF_CONGRESS:
9813482938500041
Sources of Information
- Work cat: 2019949044: Cyanine dyes, 2019.
- AAT Bioquest web site, viewed Nov. 12, 2019(Cyanine is the non-systematic name of a synthetic dye family belonging to the polymethine group. Cyanines have proven useful in several fields including photography, biology, laser technology and analytical chemistry)
- Applied science and technology, viewed Sept. 27, 2019(subject: Cyanines; in title: Cyanine dyes)
- LC data base, viewed Sept. 27, 2019(old catalog records bear subject heading Cyanines)
- Hawley's condensed chemical dictionary, 2007(Cynanine dye: One of a series of dyes consisting of two heterocyclic groups (usually quinoline nuclei) connected by a chain of conjugated double bonds containing an odd number of carbon atoms. Use: Sensitizers for photographic emulsions)
- Merriam-Webster dictionary, viewed online Nov. 12, 2019(Cyanine: any of various dyes used especially to sensitize photographic film to light from the green, yellow, red, and infrared regions of the spectrum)
Wikipedia description:
Cyanines, also referred to as tetramethylindo(di)-carbocyanines are a synthetic dye family belonging to the polymethine dye group. Although the name derives etymologically from terms for shades of blue, the cyanine family covers the electromagnetic spectrum from near IR to UV. Chemically, cyanines are a conjugated system between two nitrogen atoms; in each resonance structure, exactly one nitrogen atom is oxidized to an iminium. Typically, they form part of a nitrogenous heterocyclic system. The main application for cyanine dyes is in biological labeling. Nevertheless, there is a wide literature on both their synthesis and uses, and cyanines are common in some CD and DVD media.
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