pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.04	IUPAC digitized pKa	1	0	COc1cc(C)c2c([nH+]1)OCCC2	COc1cc(C)c2c(n1)OCCC2	mol7834	COc1cc(C)c2c(n1)OCCC2