InChI=1S/C31H30O13/c1-10(2)12-7-13-21(34)20-15(33)8-16-11(5-6-31(3,4)44-16)26(20)42-27(13)19-14(32)9-17(22(35)18(12)19)41-30-25(38)23(36)24(37)28(43-30)29(39)40/h5-6,8-9,12,23-25,28,30,32-33,35-38H,1,7H2,2-4H3,(H,39,40)