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