c1cnc(N2CCNCC2)nc1    mol240    0_1
c1cnc(N2CCNCC2)[nH+]c1    mol240    1_1
c1cnc([NH+]2CCNCC2)nc1    mol240    1_2
c1cnc(N2CC[NH2+]CC2)nc1    mol240    1_3