InChI=1S/C31H57O9P/c1-3-5-7-9-11-15-20-24-31(33)39-27(26-38-41(34,35)36)25-37-30(32)23-19-16-12-14-18-22-29-28(40-29)21-17-13-10-8-6-4-2/h13,17,27-29H,3-12,14-16,18-26H2,1-2H3,(H2,34,35,36)/b17-13-/t27-,28?,29?/m1/s1