InChI=1S/C23H37O9P/c1-2-3-6-10-19(24)13-14-21-18(12-15-22(21)26)9-7-4-5-8-11-23(27)31-16-20(25)17-32-33(28,29)30/h4,7,12-15,18-21,24-25H,2-3,5-6,8-11,16-17H2,1H3,(H2,28,29,30)/b7-4-,14-13+