pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.74	Caine	0	-1	O=C1CC(=O)CC(c2ccccc2)C1	O=C1[CH-]C(=O)CC(c2ccccc2)C1	mol2729	O=C1CC(=O)CC(c2ccccc2)C1