InChI=1S/C17H18O10S/c1-25-7-8-2-3-10(17(15(8)21)27-28(22,23)24)16-13(20)6-11-12(19)4-9(18)5-14(11)26-16/h2-5,13,16,18-21H,6-7H2,1H3,(H,22,23,24)