pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.2	IUPAC digitized pKa	1	0	Brc1cc2ccc[nH+]c2c2ncccc12,Brc1cc2cccnc2c2[nH+]cccc12	Brc1cc2cccnc2c2ncccc12	mol8404	Brc1cc2cccnc2c2ncccc12
4.1999998	OCHEM	1	0	Brc1cc2ccc[nH+]c2c2ncccc12,Brc1cc2cccnc2c2[nH+]cccc12	Brc1cc2cccnc2c2ncccc12	mol8404	Brc1cc2cccnc2c2ncccc12
4.19999980926514	QSARToolbox	1	0	Brc1cc2ccc[nH+]c2c2ncccc12,Brc1cc2cccnc2c2[nH+]cccc12	Brc1cc2cccnc2c2ncccc12	mol8404	Brc1cc2cccnc2c2ncccc12