InChI=1S/C57H110O17P2/c1-6-10-13-16-18-19-20-21-22-23-24-26-33-38-43-57(62)74-53(47-68-55(60)41-36-31-28-27-30-34-39-50(5)9-4)49-72-76(65,66)70-45-51(58)44-69-75(63,64)71-48-52(46-67-54(59)40-35-29-15-12-8-3)73-56(61)42-37-32-25-17-14-11-7-2/h50-53,58H,6-49H2,1-5H3,(H,63,64)(H,65,66)/t50?,51-,52+,53+/m0/s1