pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
6.5	IUPAC digitized pKa	1	0	CCn1cnc(N)c2nc[nH+]c1-2,CCn1cnc([NH3+])c2ncnc1-2,CCn1cnc(N)c2[nH+]cnc1-2,CCn1c[nH+]c(N)c2ncnc1-2	CCn1cnc(N)c2ncnc1-2	mol8246	CCn1cnc(N)c2ncnc1-2