InChI=1S/C15H12O10S/c16-6-3-10(18)12-11(4-6)24-5-8(13(12)19)7-1-2-9(17)15(14(7)20)25-26(21,22)23/h1-4,8,16-18,20H,5H2,(H,21,22,23)