Synonyms : Phosphatidylinositol 4, 5-Biphosphate, PtIns 4, 5-P2, 4, 5-Biphosphate, Phosphatidylinositol, 4, 5-Diphosphate, Phosphatidylinositol, Phosphatidylinositol 4, 5 Biphosphate, Phosphatidylinositol 4, 5 Bisphosphate, Phosphatidylinositol 4, 5 Diphosphate