O=C(O)C#CCN1CCCC1    mol8581    0_1
O=C([O-])C#CC[NH+]1CCCC1    mol8581    0_2
O=C(O)C#CC[NH+]1CCCC1    mol8581    1_1
O=C([O-])C#CCN1CCCC1    mol8581    -1_1