THE TITLE COMPOUND [SYSTEMATIC NAME: tetra-benzyl (1R,2R,3S,4R,5R,6S)-4-(tert-butyl-diphenyl-sil-yloxy)-3,5,6-tris-(meth-oxy-meth-oxy)cyclo-hexane-1,2-diyl bis-phosphate], C(56)H(68)O(15)P(2)Si, was isolated as an inter-mediate in the preparation of a phosphatidylinositol phosphate for biological studies. In the crystal, the mol-ecules are connected via one methyl-ene C-H⋯π and two weak phen-yl-ether C-H⋯O inter-actions. One benz-yloxy group is disordered over two overlapping positions with an occupancy ratio of 0.649 (7):0.351 (7).