pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	IUPAC digitized pKa	1	0	COc1ccnc[nH+]1,COc1cc[nH+]cn1	COc1ccncn1	mol4208	COc1ccncn1