pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.8	IUPAC digitized pKa	0	-1	CC[NH+]=Cc1ccccc1[O-],CCN=Cc1ccccc1O	CCN=Cc1ccccc1[O-]	mol11041	CCN=Cc1ccccc1O