InChI=1/C15H12N2O2S/c16-14(20)17-15(10-6-2-1-3-7-10)12-9-5-4-8-11(12)13(18)19-15/h1-9H,(H3,16,17,20)/t15-/m1/s1/f/h17H,16H2 789DFD531FDBC53A