InChI=1S/C36H32O18/c37-13-3-1-2-12(6-13)36-33(47)25(23-17(39)7-14(8-21(23)53-36)50-35-29(46)27(44)28(45)32(52-35)34(48)49)24-22(54-36)10-16(38)15-9-20(42)30(51-31(15)24)11-4-18(40)26(43)19(41)5-11/h1-8,10,20,25,27-30,32-33,35,37-47H,9H2,(H,48,49)