Figure 4.19F NMR of the urine of a rat given 250 [micro sign]mol/kg S-[2-(fluoromethoxy)-1,3,3,3-tetrafluoro-1 -propenyl]N-acetyl-L-cysteine (compound 5) intraperitoneally. The urine samples were analyzed as described in the Materials and Methods section. The spectrum shown is typical of the spectra recorded in three rats.