InChI=1/C16H15N2O4S/c1-3-23(20,21)18-11-5-7-14-12(9-11)16(19)17-13-8-10(2)4-6-15(13)22-14/h4-9H,3H2,1-2H3,(H,17,19)/q-1/f/h17H E614B4CC780332BE