InChI=1/C14H9BrN2O3S/c15-9-3-1-2-8(6-18)12(9)20-7-11-16-10-4-5-21-13(10)14(19)17-11/h1-6H,7H2,(H,16,17,19)/f/h17H 6BF926C9B8371A63