InChI=1/C18H18N2O4S/c1-3-25(21,22)14-9-10-16(23-2)15(11-14)20-18-19-12-17(24-18)13-7-5-4-6-8-13/h4-12H,3H2,1-2H3,(H,19,20)/f/h20H E69FCC83C2C2ED0C