Carbazole


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carbazole

[′kär·bə‚zōl]
(organic chemistry)
One of a group of organic heterocyclic compounds containing a dibenzopyrrole system. Also known as 9-azafluorene.

Carbazole

 

dibenzopyrrole, a heterocyclic compound; colorless crystals that are insoluble in water and soluble in organic solvents. Melting point, 245°-247°C; boiling point, 354°-355°C. It is a weak base, forming unstable salts and acids.

Carbazole is extracted from coal tar (from anthracene oil) andis also prepared synthetically from aminodiphenyl and phe-nanthrene. It is used in the manufacture of dyes, pharmaceuti-cals, and insecticides.[11–1194–1 ]

References in periodicals archive ?
3) The electroactive carbazole side group facilitated electrodeposition, forming oligocarbazole links.
Carbazole alkaloids as new cell cycle inhibitor and apoptosis inducers from Clausena dunniana Levi.
In addition, the Australian patent authority had previously granted patent Number 2005267117 titled, "Inhibition of NF- kappaB" for carbazole compounds.
After streptavidin horseradish peroxidase treatment for 30 minutes and 3-amino-9-ethyl carbazole chromogen treatment, contrast staining was carried out using Mayer's hematoxylin.
See Results of Redetermination Pursuant to Court Remand: Carbazole Violet Pigment 23 from the People's Republic of China, Trust Chem, 791 F.
Explaining a whacking 22 percent price hike effective mid-December for purples, violets and similar ink colors, he put the blame on the "reduced availability" of carbazole, a key ingredient sourced only in China and India.
Pigments Offered: Blues (indanthrone blue, carbazole violets, phthalocyanine blues); Greens (phthalocyanines); Reds (matellized azo reds, high performance quinacridones; Yellows and Oranges (diarylide yellow); Dispersions (aqueous and non-aqueous)
Modification of anthrone, carbazole, and orcinol reactions for quantification of monosaccharides.
Supported by journal and patent literature from 2000 onwards, Fink approaches material from a chemistry and engineering perspective with the most current data available as he covers carbazole polymers, polyp-xylylenes, polyarylene vinylenes, polyphenylene ethers, polyphenylene sulfide, polyaryl ether ketones, polyarlene ether sulfonespolyarylene ether nitriles, triazole polymers, polyoxadiazoles, polynaphthalates, polyphthalamides, aramids, polyamide imides, polyimides, and liquid crystal polymers.
Then 3-amino-9-ethyl carbazole was used as a chromogen, and the sections were counterstained with Mayer hematoxylin.
It should be noted that vinyl polymers containing carbazole, and especially their octylmetacrylate copolymers, are stable to photooxidation and photodestruction compounds [3].