CNc1ccnc(N(C)C)n1    mol7409    0_1
C[NH2+]c1ccnc(N(C)C)n1    mol7409    1_1
CNc1ccnc(N(C)C)[nH+]1    mol7409    1_2
CNc1cc[nH+]c(N(C)C)n1    mol7409    1_3
CNc1ccnc([NH+](C)C)n1    mol7409    1_4