InChI=1S/C19H22O9S/c1-10-13-6-12(14(21)9-20)8-17(26-3)19(13)27-18(10)11-4-5-15(16(7-11)25-2)28-29(22,23)24/h4-8,10,14,18,20-21H,9H2,1-3H3,(H,22,23,24)