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