Abstract
Reactions of melatonin (N-acetyl-5-methoxytryptamine) with radiolytically generated radicals were studied. Reaction of melatonin with OH radicals is diffusion-controlled (k=1.2·1010 dm3 mol−1·s−1), the main (but not the only one) intermediate being the indolyl-type radical, while the rate constant for the reaction with hydrated electrons isk=4.3·108 dm3·mol−1·s−1. Melatonin is capable of scavenging tert-butanol radicals, while its reactivity towards polymer radicals of poly(acrylic acid) and poly(vinyl pyrrolidone) is very low.
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Stasica, P., Ulanski, P. & Rosiak, J.M. Reactions of melatonin with radicals in deoxygenated aqueous solution. J Radioanal Nucl Chem 232, 107–113 (1998). https://doi.org/10.1007/BF02383723
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DOI: https://doi.org/10.1007/BF02383723