InChI=1/C7H8BrN3O4/c8-3-1-11(2-4(9)6(13)14)7(15)10-5(3)12/h1,4H,2,9H2,(H,13,14)(H,10,12,15)/t4-/m1/s1/f/h9-10H 18D3554114AFB947