pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.5	OCHEM	1	0	Cc1[nH+]c(NC(=O)CCCC(=O)O)sc1C	Cc1nc(NC(=O)CCCC(=O)O)sc1C	mol349	Cc1nc(NC(=O)CCCC(=O)O)sc1C