InChI=1S/C15H10O11S2/c16-12-5-10(26-28(21,22)23)6-13-14(12)15(17)11(7-24-13)8-1-3-9(4-2-8)25-27(18,19)20/h1-7,16H,(H,18,19,20)(H,21,22,23)