Cn1c(=O)c2nc[nH]c2n(C)c1=O    mol535    0_1
Cn1c(=O)c2[nH+]c[nH]c2n(C)c1=O    mol535    1_1
Cn1c(=O)c2[nH+]c[nH]c2n(C)c1=[OH+]    mol535    2_1
Cn1c(=[OH+])c2nc[nH]c2n(C)c1=[OH+]    mol535    2_2
Cn1c(=[OH+])c2[nH+]c[nH]c2n(C)c1=O    mol535    2_3
Cn1c(=O)c2nc[n-]c2n(C)c1=O    mol535    -1_1