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Issue 1232, 1978
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Spectrophotometric determination of 6,7-dihydroxycoumarin and its methoxy derivatives

Abstract

A spectrophotometric method for the determination of the single components in a mixture of 6,7-dihydroxycoumarin and its methoxy derivatives is described. The method is based on the determination of 6,7-dihydroxycoumarin after complexation with molybdophosphoric acid in buffered solution and of 6-hydroxy-7-methoxy-, 7-hydroxy-6-methoxy- and 6,7-dimethoxycoumarin by treatment with sodium methylate solution followed by difference absorbance measurements. This procedure has also been applied successfully to the study of the methylation reaction of 6,7-dihydroxycoumarin.

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Article information


Analyst, 1978,103, 1116-1120
Article type
Paper

Spectrophotometric determination of 6,7-dihydroxycoumarin and its methoxy derivatives

E. Celon, A. Guiotto and P. Rodighiero, Analyst, 1978, 103, 1116
DOI: 10.1039/AN9780301116

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