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Radiopharmaceutical structure. The radiopharmaceutical consisted of a radionuclide (68Ga), a bifunctional chelator (NODAGA) and a targeting vector, known as Z-360. Z-360 is an antagonist of CCK2R, which serves as the molecular target in the study. The labeling reaction was performed at 90 °C, maintaining a pH of 4.5 and achieving a high yield within a 5 min time span.
