pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.38	IUPAC digitized pKa	1	0	COc1cc([NH3+])c2ncccc2c1,COc1cc(N)c2[nH+]cccc2c1	COc1cc(N)c2ncccc2c1	mol4360	COc1cc(N)c2ncccc2c1