pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.73	IUPAC digitized pKa	0	-1	Cc1c(-c2ccccc2)[nH]oc1=O	Cc1c(-c2ccccc2)[n-]oc1=O	mol11325	Cc1c(-c2ccccc2)[nH]oc1=O