pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
12.3	IUPAC digitized pKa	0	-1	Cc1ccccc1N=NN(C)O	Cc1ccccc1N=NN(C)[O-]	mol10673	Cc1ccccc1N=NN(C)O