Wnt Agonist is a cell-permeable pyrimidine compound that acts as, at an IC50 > 60 μM, a potent and selective activator of Wnt signaling. In addition to mimicking the effect of Wnt, Wnt Agonist has also induced β-catenin and T-cell fate-dependent transcriptional activity in HEK-293T cells at an EC50 = 700 nM. When applied to Xenopous embryos Wnt Agonist caused substantial head defects development. Wnt Agonist has also been observed to enhance beta cell expansion in vitro. The compound is beneficial for studying the effects of Wnt pathway due to the activation of Wnt without inhibiting the activity of GSK-3β.