pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.2	OCHEM	0	-1	O=C1CCC(O)=C1Cc1ccc(Br)cc1	O=C1CCC([O-])=C1Cc1ccc(Br)cc1	mol21254	O=C1CCC(O)=C1Cc1ccc(Br)cc1