pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.56	IUPAC digitized pKa	0	-1	O=C1CC=NN1c1ccccc1	O=c1[cH-]cnn1-c1ccccc1	mol10964	O=C1CC=NN1c1ccccc1