pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.09	IUPAC digitized pKa	1	0	Cn1cccc2c(=[OH+])cccc1-2	Cn1cccc2c(=O)cccc1-2	mol4406	Cn1cccc2c(=O)cccc1-2