InChI=1S/C19H22O9S/c1-25-16-9-12(3-4-15(16)28-29(22,23)24)18-14(10-21)13-7-11(5-6-20)8-17(26-2)19(13)27-18/h3-4,7-9,14,18,20-21H,5-6,10H2,1-2H3,(H,22,23,24)