pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
1.69	IUPAC digitized pKa	1	0	CCOC(=O)c1sc[nH+]c1C	CCOC(=O)c1scnc1C	mol7562	CCOC(=O)c1scnc1C