InChI=1S/C31H26O12/c1-11-4-13(6-20(37)27(11)39)31-30(40)26(24-19(36)7-14(32)8-22(24)42-31)25-23(43-31)10-17(34)15-9-21(38)28(41-29(15)25)12-2-3-16(33)18(35)5-12/h2-8,10,21,26,28,30,32-40H,9H2,1H3/t21-,26-,28-,30-,31+/m1/s1