InChI=1S/C36H28O15/c37-10-12-4-16-23(24-17-5-13(11-38)6-19(40)25(17)29(43)27-18(24)8-14(39)9-21(27)42)15-2-1-3-22(28(15)30(44)26(16)20(41)7-12)50-36-33(47)31(45)32(46)34(51-36)35(48)49/h1-10,23-24,31-34,36,38-42,45-47H,11H2,(H,48,49)