N[C@H](CBr)Cc1c[nH]cn1 mol6632 0_1 [NH3+][C@H](CBr)Cc1c[nH]cn1 mol6632 1_1 N[C@H](CBr)Cc1c[nH]c[nH+]1 mol6632 1_2 [NH3+][C@H](CBr)Cc1c[nH]c[nH+]1 mol6632 2_1