InChI=1S/C21H41O8P/c1-2-3-4-11-14-19(22)15-12-9-7-5-6-8-10-13-16-21(24)28-17-20(23)18-29-30(25,26)27/h9,12,19-20,22-23H,2-8,10-11,13-18H2,1H3,(H2,25,26,27)/b12-9-