Table 1. List of 114 low molecular-weight molecules identified in feline urine in the training data set using an untargeted metabolomics approach.

3-(3-hydroxyphenyl)propionic acid	glycerol	phenaceturic acid
3-(4-hydroxyphenyl)propionic acid	glycerol-3-galactoside	phenol
3,4-dihydroxycinnamic acid	glycine	phosphate
3,4-dihydroxyhydrocinnamic acid NIST	glycocyamine	pimelic acid
3,4-dihydroxyphenylacetic acid	glycolic acid	pinitol
3-aminoisobutyric acid	hexadecane	propane-1,3-diol NIST
3-hydroxy-3-methylglutaric acid	hexitol	pseudo uridine
3-phosphoglycerate	hexuronic acid	putrescine
4-hydroxybenzoate	hippuric acid	pyruvic acid
4-hydroxybutyric acid	hydroxylamine	quinic acid
4-hydroxycinnamic acid	indole-3-acetate	raffinose
4-hydroxyhippuric acid NIST	indoxyl sulfate	ribitol
4-hydroxyphenylacetic acid	inosine	ribonic acid
5-hydroxy-3-indoleacetic acid	isocitric acid	ribose
aconitic acid	isohexonic acid	saccharic acid
adenosine	isomaltose	serine
alanine	isoribose	sorbitol
allantoic acid	isothreonic acid	stearic acid
alpha-ketoglutarate	kynurenic acid	succinic acid
benzoic acid	lactic acid	sucrose
benzylalcohol	lysine	sulfuric acid
beta-alanine	lyxitol	tagatose
beta-gentiobiose	lyxose	taurine
catechol	malic acid	threitol
citramalic acid	mannose	threonic acid
citric acid	mucic acid	trehalose
citrulline	myo-inositol	tryptophan
conduritol-beta-expoxide	myristic acid	tyrosine
creatinine	N-acetylaspartic acid	tyrosol
deoxypentitol	n-acetyl-d-hexosamine	urea
erythritol	N-acetylglutamate	uric acid
ferulic acid	N-acetylmannosamine	uridine
fructose	ornithine	valine
fucose	oxalic acid	vanillic acid
galactinol	oxoproline	xylitol
galactonic acid	palmitic acid	xylonic acid
gluconic acid	pelargonic acid	xylose
glyceric acid	pentitol	xylulose NIST