pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.99	IUPAC digitized pKa	1	0	CC[NH2+]N,CCN[NH3+]	CCNN	mol5803	CCNN
7.95	Datawarrior	1	0	CC[NH2+]N,CCN[NH3+]	CCNN	mol5803	CCNN
7.9499998	OCHEM	1	0	CC[NH2+]N,CCN[NH3+]	CCNN	mol5803	CCNN
7.98999977111816	QSARToolbox	1	0	CC[NH2+]N,CCN[NH3+]	CCNN	mol5803	CCNN