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