pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.33	IUPAC digitized pKa	0	-1	O=c1[nH]ncc(=S)[nH]1	O=c1[n-]ncc(=S)[nH]1,O=c1[n-]c(=S)cn[nH]1	mol9100	O=c1[nH]ncc(=S)[nH]1