O=C([O-])C1=CC[NH2+]CC1    mol16719    0_1
O=C(O)C1=CCNCC1    mol16719    0_2
O=C(O)C1=CC[NH2+]CC1    mol16719    1_1
O=C([O-])C1=CCNCC1    mol16719    -1_1