CCCOc1nc(N)nc(N)n1    mol7627    0_1
CCCOc1nc(N)[nH+]c(N)n1    mol7627    1_1
CCCOc1nc(N)nc(N)[nH+]1    mol7627    1_2
CCCOc1nc(N)nc([NH3+])n1    mol7627    1_3