pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.42	IUPAC digitized pKa	1	0	COc1cc(N)[nH+]c(C)n1,COc1cc(N)nc(C)[nH+]1,COc1cc([NH3+])nc(C)n1	COc1cc(N)nc(C)n1	mol7091	COc1cc(N)nc(C)n1