pka_value	data_source	charge_state_pre	charge_state_post	microspecies_pre	microspecies_post	molid	smiles
9.99	IUPAC digitized pKa	1	0	C#CCn1ccc[nH+]c1=N,C#CCn1cccnc1=[NH2+]	C#CCn1cccnc1=N	mol7351	C#CCn1cccnc1=N