InChI=1S/C13H16O13S/c14-3-8-10(26-27(21,22)23)13(20,12(19)25-8)4-24-11(18)5-1-6(15)9(17)7(16)2-5/h1-2,8,10,12,14-17,19-20H,3-4H2,(H,21,22,23)