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