Cc1[nH+]onc1/C=N/[O-]    mol20487    0_1
Cc1no[nH+]c1/C=N/[O-]    mol20487    0_2
Cc1nonc1/C=N/O    mol20487    0_3
Cc1nonc1/C=N/[O-]    mol20487    -1_1