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Table 4 Chemical putative identities of all discriminatory VOCs of the comparison between IPF and CTD-ILD

From: The use of exhaled air analysis in discriminating interstitial lung diseases: a pilot study

Chemical identity

CAS number

Change in IPF with respect to CTD-ILD

Acetone

67-64-1

Down

Dimethylsulfone

3877-15-4

Up

Heptane

142-82-5

Down

4-methyl-2-heptene

3404-56-6

Up

Branched C11H24

NA

Up

Undecane

1120-21-4

Down

Tridecane

629-50-5

Up

Octadecane

593-45-3

Down

Branched C12H24

NA

Up

Pyrrolidine

123-75-1

Down

Decanal

112-31-2

Down

2-heptanone

110-43-0

Up

Branched C14H30

NA

Up

4-penten-ol

821-09-0

Up

2,5-methylfuran

625-86-5

Down

2-thiapentane

3877-15-4

Up