An IP6K (IC50 = 0.55 μM; Ki = 0.24 μM) and IP3K (IC50 = 10.2 μM; Ki = 4.3 μM) inhibitor; reduces IP7 and IP8 levels; inhibits insulin release in MIN6 cells; increases intracellular calcium levels in a concentration-dependent manner (5-20 μM) in HL-60 cells; increases intracellular calcium and induces degranulation of mast cells,