InChI=1S/C19H20O10S/c1-4-10(2)18(22)29-19(3,9-26-30(23,24)25)17-15(21)14-12(27-17)7-5-11-6-8-13(20)28-16(11)14/h4-8,15,17,21H,9H2,1-3H3,(H,23,24,25)