quinone(redirected from P-chloranil)
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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)
Farlex Partner Medical Dictionary © Farlex 2012
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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
quinone(1) 1,4-Benzoquinone, see there.
(2) An aromatic compound with two oxygens substituted for two hydrogens.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
quinoneany of the various compounds derived from benzene.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005