pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
2.63000011444092	QSARToolbox	0	-1	O=[N+]([O-])c1nnn(Cc2nnn[nH]2)n1	O=[N+]([O-])c1nnn(Cc2nnn[n-]2)n1	mol35942	O=[N+]([O-])c1nnn(Cc2nnn[nH]2)n1