1-phosphatidyl-1D-myo-inositol 1-O-(3-sn-phosphatidyl)-1D-myo-inositol A phosphatidylinositol in which the inositol moiety is the 1D-myo isomer and the phosphatidyl group is located at its position 1. C11H17O13P PMID:28600633 [C@@H]1([C@@H]([C@@H]([C@@H]([C@H]([C@@H]1O)O)O)O)OP(OC[C@@H](COC(*)=O)OC(=O)*)(=O)O)O phosphatidylinositol