InChI=1/C14H12N2O5S/c17-13(11-7-18-1-2-21-11)16-14-15-8-5-9-10(6-12(8)22-14)20-4-3-19-9/h5-7H,1-4H2,(H,15,16,17)/f/h16H 5142406AA857F4CB