Nc1ncc2cn[nH]c2n1    mol26363    0_1
Nc1ncc2cn[nH]c2[nH+]1    mol26363    1_1
Nc1ncc2c[nH+][nH]c2n1    mol26363    1_2
[NH3+]c1ncc2cn[nH]c2n1    mol26363    1_3
Nc1nc2[nH]ncc2c[nH+]1    mol26363    1_4