InChI=1/C20H16N2O3S/c23-19-12-22(17-9-5-4-8-16(17)21-19)20(24)18-11-10-14(25-18)13-26-15-6-2-1-3-7-15/h1-11H,12-13H2,(H,21,23)/f/h21H CB7B1A4AB5308D22