Cn1nnc(-c2ccccc2)n1    mol25891    0_1
Cn1nnc(-c2ccccc2)[nH+]1    mol25891    1_1
Cn1nc(-c2ccccc2)n[nH+]1    mol25891    1_2
Cn1n[nH+]c(-c2ccccc2)n1    mol25891    1_3