PF-5006739 is a potent and selective inhibitor of CK1δ/ε with IC50s of 3.9 nM and 17.0 nM, respectively. PF-5006739 is a potential therapeutic agent for a range of psychiatric disorders with low nanomolar in vitro potency for CK1δ/ε and high kinome selectivity. PF-5006739 attenuats opioid drug-seeking behavior in a rodent operant reinstatement model in animals in a dose-dependent manner. PF-5006739 improves glucose tolerance in both diet-induced obesity (DIO) and genetic (ob/ob) mice models of obesity[2].IC50 & Target: IC50: 3.9 nM (CK1δ) and 17.0 nM (CK1ε)