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