InChI=1/C17H14N2O3S/c20-12-9-14(22-13-7-3-1-5-10(12)13)16(21)19-17-18-11-6-2-4-8-15(11)23-17/h1,3,5,7,9H,2,4,6,8H2,(H,18,19,21)/f/h19H 59815AF2CDCF2AD1