1D-myo-inositol 1,2,4,5,6-pentakisphosphate 20298-95-7 CPD-534 D-myo-inositol 1,2,4,5,6-pentakisphosphate inositol 1,2,4,5,6-pentakisphosphate myo-inositol 1,2,4,5,6-pentakisphosphate