pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
4.53000020980835	QSARToolbox	2	1	c1c[nH+]c(C2=[NH+]CCN2)[nH]1	c1c[nH+]c(C2=NCCN2)[nH]1,c1c[nH]c(C2=[NH+]CCN2)n1	mol37771	c1c[nH]c(C2=NCCN2)n1