c1cncc(CCN2CCCCC2)c1    mol2131    0_1
c1cncc(CC[NH+]2CCCCC2)c1    mol2131    1_1
c1c[nH+]cc(CCN2CCCCC2)c1    mol2131    1_2
c1c[nH+]cc(CC[NH+]2CCCCC2)c1    mol2131    2_1