pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.4	Hunt	0	-1	O=C(O)/C=C/c1cccnc1,O=C([O-])/C=C/c1ccc[nH+]c1	O=C([O-])/C=C/c1cccnc1	mol522	O=C(O)/C=C/c1cccnc1