InChI=1S/C57H110O17P2/c1-8-10-11-21-31-38-54(59)67-44-52(74-57(62)41-34-27-19-17-23-29-36-49(5)6)46-71-75(63,64)69-42-51(58)43-70-76(65,66)72-47-53(45-68-55(60)39-32-25-20-18-24-30-37-50(7)9-2)73-56(61)40-33-26-16-14-12-13-15-22-28-35-48(3)4/h48-53,58H,8-47H2,1-7H3,(H,63,64)(H,65,66)/t50?,51-,52+,53+/m0/s1