InChI=1/C15H14N2O3S/c1-21-14-5-3-2-4-11(14)17-15(18)16-10-6-7-12-13(8-10)20-9-19-12/h2-8H,9H2,1H3,(H2,16,17,18)/f/h16-17H ACCB28FD6853C104