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