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