CCNc1ncnc2c1cnn2C    mol4946    0_1
CCNc1[nH+]cnc2c1cnn2C    mol4946    1_1
CCNc1nc[nH+]c2c1cnn2C    mol4946    1_2
CC[NH2+]c1ncnc2c1cnn2C    mol4946    1_3
CCNc1ncnc2c1c[nH+]n2C    mol4946    1_4