pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
3.26	IUPAC digitized pKa	1	0	C[Se]c1cccc2ccc[nH+]c12	C[Se]c1cccc2cccnc12	mol7767	C[Se]c1cccc2cccnc12