Cc1ncnc2c1NCCN2    mol4841    0_1
Cc1ncnc2c1NCC[NH2+]2    mol4841    1_1
Cc1ncnc2c1[NH2+]CCN2    mol4841    1_2
Cc1nc[nH+]c2c1NCCN2    mol4841    1_3
Cc1[nH+]cnc2c1NCCN2    mol4841    1_4