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