InChI=1S/C26H28O18S/c27-7-15-18(33)20(35)23(43-25-24(44-45(36,37)38)17(32)13(31)8-39-25)26(41-15)42-22-19(34)16-12(30)5-11(29)6-14(16)40-21(22)9-1-3-10(28)4-2-9/h1-6,13,15,17-18,20,23-33,35H,7-8H2,(H,36,37,38)