pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.5	Datawarrior	0	-1	Cc1nnc(C)n1O	Cc1nnc(C)n1[O-]	mol12430	Cc1nnc(C)n1O