| TSPO | 18-kDa mitochondrial translocator protein |
| PET | positron emission computed tomography |
| SPECT | single photon emission computed tomography |
| HPLC | high performance liquid chromatography |
| ESI-MS | electrospray mass spectrometry |
| HRMS | high resolution mass spectrometry |
| CBR | central benzodiazephine receptor |
| U87-MG | U87-malignant glioma |
| % ID | % injected dose |
| NMR | nuclear magnetic resonance |
| TLC | thin layer chromatography |
| S.D. | standard deviation |