| methyl iodide | methylation – majority of C-11 radiopharmaceuticals |
| acetone | isopropylation (beta adrenergics, etc) |
| 3-[C-11]propionaldehyde | oxidative radical aromatic ethylation |
| Acetate | cancer esp. prostate, oxidative metab, myocardial infarct |
| Carazolol | beta-adrenergic receptors |
| choline | prostate cancer, detection and extent of prostate CA |
| Deprenyl | MAO-B inhibitor, tracer, Parkinson’s, drug metabolism |
| Cocaine | biodistribution, kinetics, receptor binding |
| Docetaxel | chemotherapeutic, tumor uptake, prognostic |
| Ethanol | tracer for ethanol injections, interventional radiology |
| M100907 | 5HT2A receptor occupancy |
| Methionine | brain tumor, amino acid metabolic rate, BBB |
| Nicotine | nicotine distribution, pharmacokinetics |
| N-Methyl spiperone | dopamine and serotonin receptor |
| PK11195 | Translocator protein (PBR), see FEPPA |
| Raclopride | dopamine receptor |
| SN38 (Irinotecan) | chemotherapeutic, tumor uptake measurement |
| Topotecan | chemotherapeutic, tumor uptake measurement |
| [N-13]ammonia | myocardial perfusion, other organ perfusion (not brain) |
