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