pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
16.6	IUPAC digitized pKa	0	-1	Cc1c[nH]c2ccccc12	Cc1c[n-]c2ccccc12	mol4320	Cc1c[nH]c2ccccc12