Purity >98% by NMR. A potent inhibitor of DYRKs and CLKs. Interacts also with GSK-3a/Beta, CK2 and PIM1. Interacts with the complex IKfyve/Vac14/Fig4. Modulates alternative splicing of pre-mRNA in various cellular systems. Neuroprotective against APP-induced cell death. Useful to study and modulate pre-RNA splicing. Potential compound for Alzheimer's disease and diseases involving abnormal pre-mRNA splicing. Potential compound to study Down syndrome (inhibition of DYRK1A). Neuroprotective against glutamate-induced cell death.