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