InChI=1S/C13H16O13S/c14-3-7-8(17)11(9(18)13(20)24-7)25-12(19)4-1-5(15)10(6(16)2-4)26-27(21,22)23/h1-2,7-9,11,13-18,20H,3H2,(H,21,22,23)