InChI=1S/C51H98O16P2/c1-4-7-10-13-16-17-18-19-20-21-22-23-24-25-26-27-30-33-36-39-51(56)67-48(43-61-49(54)37-34-31-28-14-11-8-5-2)45-65-69(59,60)63-42-46(53)41-62-68(57,58)64-44-47(40-52)66-50(55)38-35-32-29-15-12-9-6-3/h19-20,46-48,52-53H,4-18,21-45H2,1-3H3,(H,57,58)(H,59,60)/b20-19-/t46-,47+,48+/m0/s1