InChI=1S/C18H18O10S/c1-25-13-7-12(19)14-16(21)11(8-27-18(14)17(13)26-2)15(20)9-3-5-10(6-4-9)28-29(22,23)24/h3-7,11,15,19-20H,8H2,1-2H3,(H,22,23,24)