InChI=1S/C30H26O17S/c31-14-4-1-12(7-16(14)33)2-6-23(36)44-11-22-26(37)28(39)29(40)30(46-22)25-18(35)10-21-24(27(25)38)17(34)9-19(45-21)13-3-5-15(32)20(8-13)47-48(41,42)43/h1-10,22,26,28-33,35,37-40H,11H2,(H,41,42,43)/b6-2+