Metabolism of N-[3-chloro-4-(.beta.-D-glucosylmethyl)phenyl]urea, a metabolite of chlorotoluron, in rats and Japanese quail

Abstract

The radioactivity administered as a single oral dose of N-[3-chloro-4-(ß-D-glucosyI [ 14C] methyl)phenyl]urea was rapidly absorbed from the gastrointestinal tract and eliminated in feces and urine by both the rat and the Japanese quail. Within 6 h after treatment 57 % and 74% of the dose was excreted by rat and quail, respectively. Of the 78% of the dose excreted by rat within 12 h, 49% was the parent glucoside, 3.6% the aglycon, and 14.6 % the aglycon acid (the carboxyphenyl derivative of the aglycon). However, within the same period quail excreted 90% of the dose, of which 25.5% was the parent glucoside, 26.6% the aglycon, and 12% the aglycon acid. Unidentified metabolites, two in rat and seven in quail, formed 10.8% and 25.5% of the dose, respectively. The aglycon in rat and both the aglycon and the aglycon acid in quail formed conjugates.Procedures for the analysis of pesticide residues in or on raw agricultural commodities involve extraction with organic solvents, cleanup of interfering materials, and quantitative measurement of the pesticide and its biologically active products. Most of these procedures utilize apolar solvents designed to extract the pesticide and its apolar metabolites and leave behind polar compounds, such as glycosides and other conjugates. It has been well

Pesticides

“…3-Phenoxybenzaldehyde and its 11 metabolites were detected (189); the metabolism of the insecticidally active GABAA receptor antagonist was investigated (190); radioactive cinmethylin and its degradation products were detected (191); 14 C-8-hexachlorocyclohexane was identified after TLC separation (192); and the chromatographic behavior of chlorotoluron and its metabolites was investigated (193). 3-Phenoxybenzaldehyde and its 11 metabolites were detected (189); the metabolism of the insecticidally active GABAA receptor antagonist was investigated (190); radioactive cinmethylin and its degradation products were detected (191); 14 C-8-hexachlorocyclohexane was identified after TLC separation (192); and the chromatographic behavior of chlorotoluron and its metabolites was investigated (193).…”

“…TLC of degradation products of ethylenebisdithiourea on silica with acetone, acetone-water, and ethanol was reported (154). Chlorotoluron and its metabolites were chromatographed on silica gel (193). Chlorotoluron and its metabolites were chromatographed on silica gel (193).…”