InChI=1/C18H18N2O5S/c1-3-4-13-25-14-9-11-15(12-10-14)26(23,24)20(2)17-8-6-5-7-16(17)18(21)19-22/h5-12,22H,13H2,1-2H3,(H,19,21)/f/h19H E47E954BAE7ED12A