pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
7.5	IUPAC digitized pKa	0	-1	CCCc1n[nH]c(=O)[nH]c1=O	CCCc1n[n-]c(=O)[nH]c1=O,CCCc1n[nH]c(=O)[n-]c1=O	mol9767	CCCc1n[nH]c(=O)[nH]c1=O