InChI=1/C21H16N3O2S/c22-14-15-4-6-16(7-5-15)17-10-12-19(13-11-17)27(25,26)24-21-3-1-2-20(23-21)18-8-9-18/h1-7,10-13,18H,8-9H2/q-1 CF75A415BC174E6C