InChI=1/C12H15N2O4S/c1-12(2)7-18-10-5-4-8(14-19(3,16)17)6-9(10)11(15)13-12/h4-6H,7H2,1-3H3,(H,13,15)/q-1/f/h13H 4470A702DDED3FAE