Fig. 1From: One-pot and one-step automated radio-synthesis of [18F]AlF-FAPI-74 using a multi purpose synthesizer: a proof-of-concept experimentStructures of the FAPI-74 precursor and the reference standard of AlF-FAPI-74. a The precursor was bound 1,4,7-triazacyclononane-N, N′,N′-triacetic acid (NOTA) as a chelating agent. b The reference standard of AlF-FAPI-74Back to article page