Cc1ncnc2c1N(C=O)CCN2    mol4809    0_1
Cc1[nH+]cnc2c1N(C=O)CCN2    mol4809    1_1
Cc1nc[nH+]c2c1N(C=O)CCN2    mol4809    1_2
Cc1ncnc2c1N(C=O)CC[NH2+]2    mol4809    1_3