D-MYO-INOSITOL 1,4,5-TRIS-PHOSPHATE,*3-DEOXY-3-FLUOR

3-Deoxy-3-fluoro-D-myo-inositol 1,4,5-trisphosphate . hexasodium salt is equipotent to Ins(1,4,5)P3 in releasing intracellular calcium. The 3-position is blocked by fluorine, hence it cannot be converted to Ins(1,3,4,5)P4 by the action of 3-kinases. It may therefore provide a useful tool for studying the complex biochemical pathways in which InsP3 and InsP4 are closely interactive.