InChI=1S/C19H22O9S/c1-10-13-6-11(4-5-20)7-15(25-2)18(13)27-17(10)12-8-14(21)19(16(9-12)26-3)28-29(22,23)24/h6-10,17,20-21H,4-5H2,1-3H3,(H,22,23,24)