InChI=1S/C27H30O13/c1-11-20(30)22(32)24(34)26(37-11)36-10-18-21(31)23(33)25(35)27(40-18)38-13-7-14(28)19-15(29)9-16(39-17(19)8-13)12-5-3-2-4-6-12/h2-9,11,18,20-28,30-35H,10H2,1H3/t11-,18-,20+,21-,22+,23+,24-,25-,26-,27-/m1/s1