InChI=1S/C30H26O15S/c31-13-22-26(38)29(45-46(39,40)41)30(44-23(37)10-3-14-1-6-16(32)7-2-14)28(43-22)25-19(35)11-18(34)24-20(36)12-21(42-27(24)25)15-4-8-17(33)9-5-15/h1-12,22,26,28-35,38H,13H2,(H,39,40,41)/b10-3+