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Benzoquinones

Definition: Benzene rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups.
Also Called: 1,4-Benzoquinones,1,2-Benzoquinones
Previously Indexed: Quinones (1966-1990)

Benzoquinones Categories.
Carbazilquinone - An alkylating agent structurally similar to MITOMYCIN and found to be effective in the treatment of leukemia and various other neoplasms in mice. It causes leukemia and thrombocytopenia in almost all human patients.
Chloranil - A quinone fungicide used for treatment of seeds and foliage.
Dibromothymoquinone - At low concentrations, this compound inhibits reduction of conventional hydrophilic electron acceptors, probably acting as a plastoquinone antagonist. At higher concentrations, it acts as an electron acceptor, intercepting electrons either before or at the site of its inhibitory activity.
Plastoquinone - Polyunsaturated side-chain quinone derivative which is an important link in the electron transport chain of green plants during the photosynthetic conversion of light energy by photophosphorylation into the potential energy of chemical bonds.
Ubiquinone - A lipid-soluble benzoquinone which is involved in electron transport in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals.

Benzoquinones Definitions and Terms

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