Cc1n[nH]c(N(C)C)nc1=O    mol9781    0_1
Cc1n[nH]c([NH+](C)C)nc1=O    mol9781    1_1
Cc1[nH+][nH]c(N(C)C)nc1=O    mol9781    1_2
Cc1n[nH]c(N(C)C)[nH+]c1=O    mol9781    1_3