Chemical. CAS 280744-09-4. Formula C19H12Cl2N2O2. MW 371.2. Synthetic. Potent and selective cell permeable, ATP-competitive inhibitor of GSK3alpha with an IC50 value of 34nM and similar potency for GSK3beta. DYRK1A inhibitor IC50=0.8µM. Stimulates glycogen synthesis in liver cells and induces beta-catenin-dependent gene transcription. Acts as neuroprotectant and prevents neuronal cell death induced by PI3-kinase pathway. Anticancer agent with antiproliferative activity. Reduces pulmonary inflammation and fibrosis in a mouse model. Shown to delay preconditioning, reduces infarct size and prevents cardiac ischemia. Promotes pluripotency in mouse embryonic stem cells. Glycogen synthase kinase 3 GSK3 is a serine/threonine protein kinase that is inhibited by an assortment of extracellular stimuli such as insulin, growth factors, cell specification factors and cell adhesion.