pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.81	Datawarrior	0	-1	CC(=O)NOC(C)=O	CC(=O)[N-]OC(C)=O	mol12509	CC(=O)NOC(C)=O
6.8099999	OCHEM	0	-1	CC(=O)NOC(C)=O	CC(=O)[N-]OC(C)=O	mol12509	CC(=O)NOC(C)=O