Fig. 4From: An updated radiosynthesis of [18F]AV1451 for tau PET imagingPredicted pKa of [18F]AV1451 by property prediction and comparison of analogues by literature and predicted pKa values indicates the gamma-carboline NH of [18F]AV1451 is more acidic than a typical indole, carbazole or azaindoleBack to article page