The metabolism of Zectran in broccoli is reported. In addition to a small amount of Zectran, the following metabolites were found to be present in the broccoli flower: 4-dimethylamino-3,5-xylenol, 2,6-dimethylhydroquinone, 2,6-dimethyl-p-benzoquinone, and 4-dimethylamino-3,5-dimethyl-o-benzoquinone. The xylenol was found in both free and conjugated form, but the hydroquinone derivative was detected only as a watersoluble conjugate. Evidence is presented which suggests that metabolites of this pesticide have been incorporated into lignin.
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