pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.9	IUPAC digitized pKa	0	-1	Cc1n[nH]c(=S)s1	Cc1n[n-]c(=S)s1	mol9025	Cc1n[nH]c(=S)s1