C]-methane with iodine in 60 ± 10 % radiochemical yield (decay corrected from [ 11 C]-methyl iodide). The overall synthesis time was on average 60 minutes at EOB (end of bombardment). The final product had a specific activity of 2000 - 2700 Ci/mmol (74 - 100 TBq/mmol) at EOS (end of synthesis) and the radiochemical purity was greater than 99%. [ 11 C]-β-CPPIT showed a logP value of 2.1 indicating that