pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.75	IUPAC digitized pKa	1	0	c1nc2c(c[nH+]1)CCCC2,c1ncc2c([nH+]1)CCCC2	c1ncc2c(n1)CCCC2	mol7923	c1ncc2c(n1)CCCC2