pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.1	IUPAC digitized pKa	0	-1	Cc1o[nH]c(=O)c1C	Cc1o[n-]c(=O)c1C	mol9382	Cc1o[nH]c(=O)c1C