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Class of chemical compounds
Polymethines are compounds made up from an odd number of methine groups (CH) bound together by alternating single and double bonds. Compounds made up from
Polymethine
Type of dye
Methine dyes (polymethine dyes) are dyes whose chromophoric system consists of conjugated double bonds (polyenes) flanked by two end groups: an electron
Polymethine_dyes
Class of dyes
tetramethylindo(di)-carbocyanines are a synthetic dye family belonging to the polymethine dye group. Although the name derives etymologically from terms for shades
Cyanine
Class of natural compounds
as a function of pH. Anthocyanidins are an important subclass of the polymethine dyes and flavonoids. The flavylium cation is a chromenylium cation with
Anthocyanidin
Chemical compound
Merocyanines are a class of polymethine dyes. They include quinophthalones and spiropyrans. which are clearly defined by set structural properties. Merocyanines
Merocyanine
Chemical compound
(as in the case of β-cyclodextrin) or amino groups (as in the case of polymethine dyes). In such, the sulfobutyl group is present as neutral sodium salt
1,4-Butane_sultone
Immature red blood cell
and a fluorescent dye that marks RNA and DNA (such as titan yellow or polymethine). Reticulocytes appear slightly bluer than other red cells when looked
Reticulocyte
Atom, molecule, or ion that has an unpaired valence electron; typically highly reactive
Gilles; Hoffmann, Norbert (2022-05-16). "Synthesis and characterization of polymethine dyes carrying thiobarbituric and carboxylic acid moieties" (PDF). New
Radical_(chemistry)
Index of chemical compounds with the same name
Cyanine, a non-systematic name of a synthetic dye family belonging to the polymethine group. Cyanin (anthocyanin) (Cyanidin-3,5-O-diglucoside), a diglucoside
Cyanin
Soluble chemical substance or natural material which can impart color to other materials
fastness. Phthalocyanine (Aza[18]annulene) C.I. Reactive Blue 7 Methine or polymethine dyes possess conjugated double bonds as their chromophoric system, with
Dye
Chemical compound
Dithiazanine iodide is a chemical compound belonging to the group of polymethine dyes. It is used as a veterinary anthelmintic for dogs. It is a highly
Dithiazanine_iodide
Type of dye
350 nm long and 2.3 nm in diameter. J-aggregate dyes are found with polymethine dyes in general, with cyanines, merocyanines, squaraine and perylene
J-aggregate
Theory of molecular orbitals by Erich Hückel
Huckel Molecular Orbital Theory in Interpreting the Visible Spectra of Polymethine Dyes: An Undergraduate Physical Chemistry Experiment". Bahnick, Donald
Hückel_method
Photochromic organic chemical compound
to cyanines, even though it is not symmetric about the center of the polymethine chain, and it is classified as a merocyanine (Figure 2). Once the irradiation
Spiropyran
Egyptian physical chemist
physicochemical investigations on the isomerization of a merocyanine (polymethine dye) of the stilbazolium betaine type and its corresponding acid After
Mahmoud_Hashem_Abdel-Kader
American chemist
Farr, Erik P.; Bawendi, Moungi G.; Sletten, Ellen M. (2017). "Flavylium Polymethine Fluorophores for Near- and Shortwave Infrared Imaging". Angewandte Chemie
Ellen_Sletten
Spectral linewidth of a laser beam
5. Spaeth, M. L.; Bortfeld, D. P. (1966). "Stimulated emission from polymethine dyes". Applied Physics Letters. 9 (5). AIP Publishing: 179–181. Bibcode:1966ApPhL
Laser_linewidth
Fluorophore life sciences reagent
rhodamines confers resistance to photobleaching relative to the flexible polymethine bridge found in cyanine dyes. Applications include immunofluorescence
CF_dye
Molecule with ability to reversibly switch states
Jacquemin D, Siri O, et al. (January 2024). "Insights into extended coupled polymethines through the investigation of dual UV-to-NIR acidochromic switches based
Molecular_switch
Swiss chemist (1919–2012)
"Nature of the Free Electron Model. The Simple Case of the Symmetric Polymethines." J. Chem. Phys., 32, 467 (1960) H. Kuhn: Analogiebetrachtungen und Analogrechner
Hans_Kuhn_(chemist)
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