benzoquinone


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benzoquinone

/ben·zo·qui·none/ (-kwin´ōn)
1. a substituted benzene ring containing two carbonyl groups, usually in the para (1,4) position; p- benzoquinone is used in manufacturing and in fungicides and is toxic by inhalation and an irritant to skin and mucous membranes.
2. any of a subclass of quinones derived from or containing this structure.
References in periodicals archive ?
All the five triphenodioxazines were prepared by the oxidative cyclisation of the benzoquinone intermediates.
KEY WORDS: albumin adduct, benzene oxide, benzoquinone, nonlinear, variation.
Coenzyme Q (CoQ) encompasses a collection of homologous molecules which consist of a benzoquinone ring linked to an isoprenoid side chain [27].
The action of the sesquiterpenic benzoquinone, perezone, on electron transport in biological membranes.
Benzoquinone inhibits the voltage-dependent induction of the mitochondrial permeability transition caused by redox-cycling naphthoquinones.
Production of prostacyclin in mice following intraperitoneal injection of acetic acid, phenyl benzoquinone and zymosan, its role in the writhing response.
Recent studies have indicated that rats are able to metabolize acetochlor, alachlor, butachlor, and metolachlor to their putative DNA-reactive benzoquinone imine products (16).
These compounds belong to numerous chemical groups including trike-tones, terpenes, benzoquinones, coumarins, flavonoids, terpenoids, strigolactones, phenolic acids, tannins lignin, fatty acids and non-protein amino acids (Soltys et al.
Consequently, oxygen containing heterocycles (benzofuran, methylbenzofuran, dibenzofuran), carbonyl groups characterizing aldehydes and ketones (acetonaphthones, benzophenones, benzoquinones, benzaldehydes and their hydroxyl- and hydroxylmethyl derivatives), sulfur containing heterocycles (benzothiazole, benzoisothiazole), and nitriles (benzonitrile and aliphatic nitriles with long hydrocarbon chains) represent other groups of organic compounds identified in this extract.
One of the short-chain benzoquinones that can maintain this form of complex I-independent respiration is idebenone (INN: 2- (10-Hydroxydecyl)-5,6-dimethoxy-3-methyl-cyclohexa-2,5-diene-1,4- dione).