Table 1. Selected analogues^* of ethylbenzene.

Name	CAS No.	Correlation Coefficient	Rank*	PBPK ref.
Ethylbenzene	100-41-4	1		[58]
Xylene	1330-20-7	0.999979	1	[58]
Toluene	108-88-3	0.999957	3	[58]
Benzene	71-43-2	0.999848	7	[58]
Dichloromethane	75-09-2	0.988299	54	[59]
Methyl iodide	21410-51-5	0.910114	283	[60]

*Chemical analogues were selected based on their similar published experimental designs (animal species = rats, route of administration = inhalation, time span = short term) relative to that of ethylbenzene-associated literature.

*The ranking of correlation coefficient among a total of 307 unique chemicals in the PBPK knowledgebase.