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