InChI=1S/C17H18O10S/c1-17(2,19)11(27-28(20,21)22)8-25-16-14-10(6-7-24-14)13(23-3)9-4-5-12(18)26-15(9)16/h4-7,11,19H,8H2,1-3H3,(H,20,21,22)