pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.46	Caine	0	-1	Cc1cc(C(=O)C2C(=O)C(C)(C)C(=O)C(C)(C)C2=O)c(=O)n(-c2ccccc2)n1	Cc1cc(C(=O)[C-]2C(=O)C(C)(C)C(=O)C(C)(C)C2=O)c(=O)n(-c2ccccc2)n1	mol2691	Cc1cc(C(=O)C2C(=O)C(C)(C)C(=O)C(C)(C)C2=O)c(=O)n(-c2ccccc2)n1