COc1cc(N(C)C)ncn1    mol4183    0_1
COc1cc(N(C)C)[nH+]cn1    mol4183    1_1
COc1cc([NH+](C)C)ncn1    mol4183    1_2
COc1cc(N(C)C)nc[nH+]1    mol4183    1_3