pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.67000007629395	QSARToolbox	1	0	CCCCC#Cc1cccc[nH+]1	CCCCC#Cc1ccccn1	mol35193	CCCCC#Cc1ccccn1