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Fate of 3 phenoxybenzaldehyde diphenyl ether cleavage a major metabolic route in chicken

, : Fate of 3 phenoxybenzaldehyde diphenyl ether cleavage a major metabolic route in chicken. Journal of Agricultural & Food Chemistry 38(6): 1417-1422

The fate of 3-phenoxybenzaldehyde was investigated in chicken after oral administration of the unlabeled compound for 3 days, followed by a single dose of ald-14C-labeled material. Approximately 98% of the administered radiocarbon was elminated within 24 h. Radiocarbon metabolites were excreted free as well as conjugated. Free metabolites identified in excreta were 3-hydroxybenzoic acid (8%), 3-phenoxybenzoic acid (5%), and 2'- and/or 4'-hydroxy-3-phenoxybenzoic acid (traces, < 1%). Only a small amount (8%) of 3-hydroxybenzoic acid was eliminated as glucuronic acid and sulfate conjugates. Hydrolysis of the polar metabolites with 2 N HCl produced 37-42% 3-hydroxybenzoic acid. Similarly, 3-hydroxybenzoic acid (both free and conjugates) was also detected in the excreta of hens fed deltamethrin or fenvalerate. The diphenyl ether cleavage of 3-phenoxybenzaldehyde is a major route, probably via 3-phenoxybenzoic acid, in chickens.


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