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