InChI=1/C13H12N2O3S/c14-19(17,18)12-8-6-11(7-9-12)15-13(16)10-4-2-1-3-5-10/h1-9H,(H,15,16)(H2,14,17,18)/f/h15H,14H2 4600B28EB1332CD8