C=CCOc1nc(N)nc(N)n1    mol4258    0_1
C=CCOc1nc(N)nc(N)[nH+]1    mol4258    1_1
C=CCOc1nc(N)[nH+]c(N)n1    mol4258    1_2
C=CCOc1nc(N)nc([NH3+])n1    mol4258    1_3