InChI=1/C21H19N3O4S/c1-2-14-24(17-9-4-3-5-10-17)29(27,28)18-11-6-8-16(15-18)21(26)23-20-19(25)12-7-13-22-20/h2-13,15,25H,1,14H2,(H,22,23,26)/f/h25h,22-23H FB3DA40E6BA5AE51