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. 1985 Dec;64:185–198. doi: 10.1289/ehp.8564185

Semiquinone anion radicals of catechol(amine)s, catechol estrogens, and their metal ion complexes.

B Kalyanaraman, C C Felix, R C Sealy
PMCID: PMC1568593  PMID: 3007089

Abstract

The characterization and identification of semiquinone radicals from catechol(amine)s and catechol estrogens by electron spin resonance spectroscopy is addressed. The use of diamagnetic metal ions, especially Mg2+ and Zn2+ ions, to detect transient semiquinone radicals in biological systems and to monitor their reactions, is discussed. A brief account of the identification and reactions of quinones is also presented.

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Selected References

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