InChI=1S/C17H16O11S/c1-26-13-6-8(3-4-12(13)28-29(23,24)25)5-10(19)15(21)14-9(18)7-11(20)17(27-2)16(14)22/h3-4,6-7,18,20,22H,5H2,1-2H3,(H,23,24,25)