InChI=1S/C28H32O13/c1-12-20(29)23(32)25(34)27(39-12)38-11-19-22(31)24(33)26(35)28(41-19)40-15-7-8-16-18(9-15)37-10-17(21(16)30)13-3-5-14(36-2)6-4-13/h3-10,12,19-20,22-29,31-35H,11H2,1-2H3/t12-,19+,20-,22+,23+,24-,25+,26+,27+,28+/m0/s1