quinone

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quin·one

(kwin'ōn, kwī'nōn),
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.
2. Synonym(s): 1, 4-benzoquinone (1)

quinone

(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

(1) 1,4-Benzoquinone, see there.  
(2) An aromatic compound with two oxygens substituted for two hydrogens.

quinone

any of the various compounds derived from benzene.
References in periodicals archive ?
In the present work, p-chloranil was used as an oxidising agent in 95-97% H2SO4.
These moieties increase the chances of side products formation when p-chloranil is used as oxidizing agent.
In the modified method p-chloranil was used as oxidizing agent along with 95-97% sulphuric acid.