pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.48	IUPAC digitized pKa	0	-1	O=C([O-])C[NH+]=C1CCCCC1	O=C([O-])CN=C1CCCCC1	mol5368	O=C(O)CN=C1CCCCC1
9.4799995	OCHEM	0	-1	O=C([O-])C[NH+]=C1CCCCC1	O=C([O-])CN=C1CCCCC1	mol5368	O=C(O)CN=C1CCCCC1