InChI=1S/C35H22O16/c36-15-5-1-12(2-6-15)21(31(42)43)26(39)27(40)22(32(44)45)14-9-17-18(11-20(38)29-24(17)19(10-14)34(48)50-29)25-28(41)30(51-35(25)49)23(33(46)47)13-3-7-16(37)8-4-13/h1-11,22-23,30,36-39,41H,(H,42,43)(H,44,45)(H,46,47)/b26-21-