InChI=1S/C19H16O9S/c1-24-18-8-12(14(4-5-20)28-29(21,22)23)6-13-9-16(27-19(13)18)11-2-3-15-17(7-11)26-10-25-15/h2-3,5-9,14H,4,10H2,1H3,(H,21,22,23)