ON=C1CCCc2nonc21    mol32551    0_1
[O-]N=C1CCCc2no[nH+]c21    mol32551    0_2
[O-]N=C1CCCc2[nH+]onc21    mol32551    0_3
[O-]N=C1CCCc2nonc21    mol32551    -1_1