pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.94	IUPAC digitized pKa	-1	-2	CCOC(=O)[N-]c1nnn(C)c1CNC(=O)OCC	CCOC(=O)[N-]Cc1c([N-]C(=O)OCC)nnn1C	mol11423	CCOC(=O)NCc1c(NC(=O)OCC)nnn1C