Fig. 1From: Synthesis and evaluation of fluorine-18 labelled tetrazines as pre-targeting imaging agents for PETRadiochemical purity of A [18F]MeTz and B [18F]HTz measured over 180 min. The stability test in PBS was performed for [18F]HTz in the presence of ascorbic acid as stabilizer and for [18F]MeTz without ascorbic acidBack to article page