InChI=1S/C38H36O21/c1-52-22-9-14(3-6-17(22)39)4-8-25(43)56-33-29(46)27(44)32(36(50)51)58-38(33)59-34-30(47)28(45)31(35(48)49)57-37(34)54-16-11-19(41)26-20(42)13-21(55-24(26)12-16)15-5-7-18(40)23(10-15)53-2/h3-13,27-34,37-41,44-47H,1-2H3,(H,48,49)(H,50,51)/b8-4+