InChI=1S/C21H23O8P/c22-9-11-27-20(24)13-15(21(25)28-12-10-23)14-30(26)19-8-4-2-6-17(19)16-5-1-3-7-18(16)29-30/h1-8,15,22-23H,9-14H2