Data from Representative 2-Hour Radiolabelings
| Construct (0.1 mg for all) | 225Ac added (MBq) | Activity on purified product (MBq) | Radiochemical yield (%) | Radiochemical purity by ITLC (%) | Specific activity (GBq/g) | Approximate #Ab/actinium | Immunoreactivity vs. Set2-Luc (%, n = 3) | Immunoreactivity vs. Ramos (%, n = 3) |
| 3A-HuM | 20.72 | 3.15 | 10.5 | 69.1 | 27.4 | 118 | 77 ± 3 | 0.09 ± 0.02 |
| 3A-HuM | 4.03 | 2.41 | 57.4 | 96.0 | 28.9 | 111 | 80 ± 1 | 0.09 ± 0.04 |
| 3A-HuM | 0.844 | 0.540 | 62.8 | 97.6 | 6.66 | 487 | 84 ± 1.5 | 0.1 ± 0.1 |
| 4A-HuM | 19.8 | 10.5 | 52.2 | 98.3 | 129 | 25 | 75.1 ± 0.6 | 0.14 ± 0.04 |
| 4A-HuM | 4.18 | 3.28 | 78.0 | 99.3 | 40.7 | 79 | 83 ± 1 | 0.08 ± 0.01 |
| 4A-HuM | 0.829 | 0.677 | 81.2 | 99.3 | 8.51 | 383 | 86 ± 1.5 | 0.13 ± 0.07 |
| Unmod-HuM | 3.92 | NA | NA | 11.6 | NA | NA | 7.6 ± 0.5 | 7 ± 5 |
NA = not applicable.