1) Benzoquinone 2) Chemical compound 3) Compound 4) Used in making dyes
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1) Benzoquinone 2) Ubiquinone
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A quinone is a class of organic compounds that are formally `derived from aromatic compounds [such as benzene or naphthalene] by conversion of an even number of –CH= groups into –C(=O)– groups with any necessary rearrangement of double bonds,` resulting in `a fully conjugated cyclic dione structure.` The class includes some heterocyclic ...
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• (n.) A crystalline substance, C6H4O2 (called also benzoketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type.
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any member of a class of cyclic organic compounds containing two carbonyl groups, > C O, either adjacent or separated by a vinylene group, CH CH, ... [2 related articles]
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Aromatic dicarbonyl compound derived from a dihydroxy aromatic compound. Ubiquinone (coenzyme Q) is a dimethoxy dicarbonyl derivative of benzene involved in electron transport. Other quinones may act as tanning agents. ... (18 Nov 1997) ...
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Aromatic dicarbonyl compound derived from a dihydroxy aromatic compound. Ubiquinone (coenzyme Q) is a dimethoxy-dicarbonyl derivative of benzene involved in electron transport. Other quinones may act as tanning agents.
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Qui'none noun [
Quin ine + ket
one .]
(Chemistry) A crystalline substance, C
6 H
4 O
2 (called also
benzoketone ), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of whic...
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http://www.encyclo.co.uk/webster/Q/11
Type: Term Pronunciation: kwin′ōn, kwī′nōn Definitions: 1. General name for aromatic compounds bearing two oxygens in place of two hydrogens, usually in the para position; the oxidation product of a hydroquinone. Synonyms: 1, 4-benzoquinone1
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[
n] - any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins
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benzoquinone noun any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
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a yellow, crystalline, cyclic unsaturated diketone, CHO, formed by oxidizing aniline or hydroquinone: used chiefly in photography and in tanning leather. · any of a class of compounds of this type.
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