InChI=1/C27H30O16/c28-7-17-19(33)21(35)23(37)26(42-17)40-15-5-10(30)4-14-11(15)6-16(25(39-14)9-1-2-12(31)13(32)3-9)41-27-24(38)22(36)20(34)18(8-29)43-27/h1-6,17-24,26-29,33-38H,7-8H2,(H2-,30,31,32)/p+1/t17-,18+,19-,20+,21+,22-,23-,24+,26-,27+/s2