InChI=1S/C18H16O10S/c19-9-4-1-3-8-13(9)17(22)14-10(5-2-6-26-29(23,24)25)27-11-7-12(20)28-18(11)15(14)16(8)21/h1,3-4,10-11,18-19H,2,5-7H2,(H,23,24,25)