O=C(O)/C=C\C1=CCNCC1    mol16721    0_1
O=C([O-])/C=C\C1=CC[NH2+]CC1    mol16721    0_2
O=C(O)/C=C\C1=CC[NH2+]CC1    mol16721    1_1
O=C([O-])/C=C\C1=CCNCC1    mol16721    -1_1