Cc1nc(N)c2cn[nH]c2n1 mol4926 0_1 Cc1nc2[nH]ncc2c(N)[nH+]1 mol4926 1_1 Cc1nc(N)c2c[nH+][nH]c2n1 mol4926 1_2 Cc1nc([NH3+])c2cn[nH]c2n1 mol4926 1_3 Cc1nc(N)c2cn[nH]c2[nH+]1 mol4926 1_4 Cc1nc(N)c2cn[n-]c2n1 mol4926 -1_1