pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
11.99	IUPAC digitized pKa	0	-1	Oc1nncc2ccccc12	[O-]c1nncc2ccccc12	mol2157	Oc1nncc2ccccc12
-2.0	Datawarrior	1	0	Oc1[nH+]ncc2ccccc12,Oc1n[nH+]cc2ccccc12	Oc1nncc2ccccc12	mol2157	Oc1nncc2ccccc12