quinone


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Related to quinone: benzoquinone, quinine, hydroquinone

qui·none

 (kwĭ-nōn′, kwĭn′ōn′)
n.
1. Either of two isomeric unsaturated cyclic compounds having the formula C6H4O2, found widely in plants, especially in a yellow crystalline form, and used in making dyes, tanning hides, and photography.
2. Any of various quinonoid compounds, often yellow to red in color, many of which have biological derivation or importance, such as coenzyme-Q.

quinone

(kwɪˈnəʊn; ˈkwɪnəʊn)
n
(Elements & Compounds) another name for benzoquinone

qui•none

(kwɪˈnoʊn, ˈkwɪn oʊn)

n.
1. a yellow, crystalline, cyclic compound, C6H4O2, used chiefly in photography and in tanning leather.
2. any of a class of compounds of this type.
[1850–55; quin(ic acid) a compound found in cinchona bark and the leaves of other plants(quinic < Sp quin(a) quinine + -ic) + -one]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quinone - any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
coenzyme Q, ubiquinone - any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration
Translations
chinone
hinons
References in classic literature ?
I shall be told that the jousts of Suero de Quinones, him of the 'Paso,' and the emprise of Mosen Luis de Falces against the Castilian knight, Don Gonzalo de Guzman, were mere mockeries; as well as many other achievements of Christian knights of these and foreign realms, which are so authentic and true, that, I repeat, he who denies them must be totally wanting in reason and good sense.
Included is a rubber composition for tires including: a rubber component; a naturally occurring wax containing 40-98% by mass of an ester component; a phenylenediamine antioxidant and/or a quinone antioxidant; and a specific nonionic surfactant, the rubber composition having an amount of diene rubber of 70-100% by mass per 100% by mass of the rubber component, the rubber composition having an amount of the naturally occurring wax of 0.
Assignment of quinone derivatives as the main compound class composing 'interstellar' grains based on both polarity ions detected by the 'Cometary and Interstellar Dust Analyser' (CIDA) onboard the spacecraft STARDUST.
Thus the kinetics of hydrogen bond formation and the number of hydrogen bonds formed in quinone anion radicals / dianion offers attractive area of study.
This volume, part of a series structured to illustrate the widest range of literature on specific reactive intermediaries, illustrates the literature on quinone methides, quinone analogues in which carbonyl oxygens are replaced by methylene groups.
However, reduction of the quinone moiety of daunorubicin and doxorubicin by carbonyl reductase has previously not been observed.
Instead, quinhydrone, a 1:1 addition compound of hydroquinone and quinone is isolated in high yields (70-90%).
The chemical state of dopamine changes from a protonated hydroquinone in acidic media to an oxidized quinone in basic environments.
Pyrroloquinoline quinone (POO) activates a number of vital, cell signaling pathways involved in protecting against cellular aging
2000) characterized endogenous ubiquinones that stimulate or inhibit pore function by means of a putative quinone binding site in the PTP.
The quinone diimines are prepared by the oxidation of the commonly used p-phenylene diamine antidegradants.
Called quinone reductase, this detoxifying enzyme heads off the production of hydroxyl radicals, a type of chemically reactive molecular fragment.