InChI=1S/C53H104O13P2/c1-3-5-7-9-11-13-15-17-19-21-22-23-24-25-26-27-29-31-33-35-37-39-41-43-45-53(56)66-51(49-65-68(60,61)64-47-50(54)46-63-67(57,58)59)48-62-52(55)44-42-40-38-36-34-32-30-28-20-18-16-14-12-10-8-6-4-2/h26-27,50-51,54H,3-25,28-49H2,1-2H3,(H,60,61)(H2,57,58,59)/b27-26-/t50-,51+/m0/s1