InChI=1S/C20H21O10P/c1-10-16(17(21)11-8-14(26-3)19(28-5)15(9-11)27-4)12-6-7-13(25-2)20(18(12)29-10)30-31(22,23)24/h6-9H,1-5H3,(H2,22,23,24)