InChI=1S/C15H14O9S/c16-9-6-12(19)15(13(20)7-9)11(18)4-2-8-1-3-10(17)14(5-8)24-25(21,22)23/h1,3,5-7,16-17,19-20H,2,4H2,(H,21,22,23)