1,2-Diacyl-sn-glycero-3-phospho-(1'-myo-inositol-4',5'-bisphosphate) 1-Phosphatidyl-1D-myo-inositol 4,5-bisphosphate 1-Phosphatidyl-D-myo-inositol 4,5-bisphosphate C04637 Phosphatidyl-myo-inositol 4,5-bisphosphate Phosphatidylinositol-4,5-bisphosphate