InChI=1S/C31H28O15/c1-42-20-5-11(2-3-16(20)34)27-15(10-32)14-4-12(19-9-18(36)23-17(35)7-13(33)8-21(23)43-19)6-22(28(14)45-27)44-31-26(39)24(37)25(38)29(46-31)30(40)41/h2-8,10,15,19,24-27,29,31,33-35,37-39H,9H2,1H3,(H,40,41)