InChI=1/C18H18N2O7S/c1-18(2)26-16(21)15(17(22)27-18)11-19-12-5-7-14(8-6-12)28(23,24)20-10-13-4-3-9-25-13/h3-9,11,15,20H,10H2,1-2H3 CB7FBC5EE08C4DAA