COc1ccc2nc(N)ncc2c1    mol7838    0_1
COc1ccc2nc(N)[nH+]cc2c1    mol7838    1_1
COc1ccc2nc([NH3+])ncc2c1    mol7838    1_2
COc1ccc2[nH+]c(N)ncc2c1    mol7838    1_3