Abstract
Summary
1. The isotope concentration of the urinary hippuric acid of starved irradiated or non-irradiated rats given benzoic acid-carboxyl-C14 is much less than the dilution expected from the conjugation of the injected labeled benzoic acid with inert carbon atoms of the glycyl residue. 2. Evidence is presented that benzoic acid is a normally occurring metabolite in rats. 3. The effect of xradiation on the ability of starved rats to conjugate benzoic acid-carboxyl-C14 has been tested and no defect detected under the experimental conditions used.
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