InChI=1S/C17H16O10S/c1-25-13-6-11(19)14-15(20)9(7-26-17(14)16(13)21)4-8-2-3-10(18)12(5-8)27-28(22,23)24/h2-3,5-6,9,18-19,21H,4,7H2,1H3,(H,22,23,24)