InChI=1S/C36H32O16/c37-15-6-4-13(5-7-15)30-20(41)11-18-21(48-35-29(44)27(42)28(43)32(50-35)34(46)47)12-23-25(31(18)49-30)26-24-19(40)9-17(39)10-22(24)51-36(52-23,33(26)45)14-2-1-3-16(38)8-14/h1-10,12,20,26-30,32-33,35,37-45H,11H2,(H,46,47)