Abstract
1. At least 50% of a dose of 14C-labelled 2,4-dichlorophenoxyacetic acid or phenylacetic acid was excreted in urine in 48 hours after administration to dogfish shark or flounder.
2. For both compounds, more than 90% of the urinary 14C was present as a single metabolite.
3. Each metabolite was the taurine conjugate of the administered compound.