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