pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
8.56	IUPAC digitized pKa	1	0	c1cnc2c(c1)CC[NH2+]C2	c1cnc2c(c1)CCNC2	mol7829	c1cnc2c(c1)CCNC2
2.48	IUPAC digitized pKa	2	1	c1c[nH+]c2c(c1)CC[NH2+]C2	c1cnc2c(c1)CC[NH2+]C2	mol7829	c1cnc2c(c1)CCNC2