pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
19.4599990844727	QSARToolbox	0	-1	Cc1cccc2cc[nH]c12	Cc1cccc2cc[n-]c12	mol33822	Cc1cccc2cc[nH]c12