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 ?
The relationships for the two benzoquinone adducts show greater concavity than that of BO-Alb.
Past several years, over 78 compounds have been isolated and identified form Antrodia cinnamomea, consisting of zhankuic acids, terpenoids, triterpenes, benzenoids, lignans, benzoquinone derivatives, succinic and maleic derivatives, and polysaccharides (Geethangili and Tzeng 2009).
A novel chlorinated benzoquinone antibiotic, mycenon (13), was isolated from the culture broth of a basidiomycete, Mycelia sp.
Chemical defense in harvestmen (Arachnida, Opiliones): do benzoquinone secretions deter invertebrate and vertebrate predators?
Other pieces were etched in dichloromethane--a good solvent for the reactants--with 1% benzoquinone for 10 hrs to dissolve any soluble materials.
1996 (a)DIMBOA = 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3- one; gramine = N,N-dimethyl- 3-aminomethylindole; hordenie = 4-(2-dimethylam inoethyl)phenol; scopoletin = 6-methoxy-7-hydroxycoumarin; sorgoleone = 2- hydroxy-5-methoxy-3[8'Z,11' Z)-8',11',14'-pentadecatrienyl]-p- benzoquinone.
Using benzoquinone as the model toxicant, Mason and Liebler (2000) observed cysteine as a preferred target for quinone-induced toxicity.