Characterization of 64Cu-Labeled Peptides
| Peptide | RP-HPLC (tr-min) | Labeling yield (%) | Radiochemical purity | Receptor affinity (IC50) (nM) |
| 64Cu-NO2A-TFpep | 13.5 | 58 | ≥98 | 70 ± 8.0 |
| 64Cu-NO2A-TFscr | 13.8 | 52 | ≥97 | — |
IC50 was determined using copper-NO2A-TFpep as competitor.