InChI=1S/C19H18O9S/c1-24-18-8-12(14(20)4-5-27-29(21,22)23)6-13-9-16(28-19(13)18)11-2-3-15-17(7-11)26-10-25-15/h2-3,6-9,14,20H,4-5,10H2,1H3,(H,21,22,23)