InChI=1S/C51H46O21/c52-21-6-8-24-32(15-21)69-46(18-2-1-3-23(12-18)68-51-44(65)42(63)43(64)49(72-51)50(66)67)40(61)34(24)36-38(59)26-17-31(58)45(19-4-10-27(54)29(56)13-19)71-48(26)37(39(36)60)35-25-9-7-22(53)16-33(25)70-47(41(35)62)20-5-11-28(55)30(57)14-20/h1-16,31,34-35,40-47,49,51-65H,17H2,(H,66,67)