D-Ribofuranose (D-Ribose) is an endogenous metabolite present in Cerebrospinal_Fluid that can be used for the research of Ribose 5 Phosphate Isomerase Deficiency and Medium Chain Acyl Co A Dehydrogenase Deficiency.

Estrone sulfate is an endogenous metabolite present in Blood that can be used for the research of X-Linked Ichthyosis and Obesity.

Isocitric acid is an endogenous metabolite present in Saliva and Cellular_Cytoplasm that can be used for the research of Alzheimer's Disease, Lewy Body Dementia and Anoxia.

L-Xylulose is an endogenous metabolite present in Blood, Cerebrospinal_Fluid and Urine that can be used for the research of Ribose 5 Phosphate Isomerase Deficiency.

N1-Acetylspermine is an endogenous metabolite present in Urine that can be used for the research of Leukemia.

Normetanephrine is an endogenous metabolite present in Cerebrospinal_Fluid that can be used for the research of Hypertension.

Phytanic acid is an endogenous metabolite present in Blood that can be used for the research of Zellweger Syndrome, Alpha Methylacyl CoA Racemase Deficiency, Rhizomelic Chondrodysplasia Punctata and Infantile Refsum Disease.

Pristanic acid is an endogenous metabolite present in Blood that can be used for the research of Alpha Methylacyl CoA Racemase Deficiency and Zellweger Syndrome.

Acetyl-coenzyme A (Acetyl-CoA) trilithium is a membrane-impermeant central metabolic intermediate, participates in the TCA cycle and oxidative phosphorylation metabolism. Acetyl-coenzyme A trilithium regulates various cellular mechanisms by providing (sole donor) acetyl groups to target amino acid residues for post-translational acetylation reactions of proteins. Acetyl Coenzyme A trilithium is also a key precursor of lipid synthesis.

Saccharopine (L-Saccharopine) hydrochloride, a lysine degradation intermediate, is a mitochondrial toxin. Lysine and α-ketoglutarate are converted into Saccharopine hydrochloride by the lysine-ketoglutarate reductase. Saccharopine hydrochloride is then oxidized to α-aminoapidate semialdehyde and glutamate by the saccharopine dehydrogenase. Saccharopine hydrochloride impairs development by disrupting mitochondrial homeostasis.

TRH Precursor Peptide is a precursor peptide of thyrotropin-releasing hormone (TRH). TRH Precursor Peptide formation of TRH in rat brain and pituitary is zinc-dependent.

Mannose 1-phosphate is an endogenous metabolite. Mannose 1-phosphate can be used to synthesize GDP-Man by the enzyme GDP-mannose pyrophosphorylase.

Galactonic acid is a sugar acid that is a metabolic breakdown product of galactose. Galactose dehydrogenase is responsible for converting galactose to galactonolactone, which then spontaneously or enzymatically converts to galactonic acid.

UDP-Galactose is a monosaccharide involved in nucleotide sugar metabolism. UDP-Galactose and its derivatives act as a natural agonist for Gi protein-conjugated P2Y14 receptors in the immune system (IC50=0.67 μM, hP2Y14).

Metanephrine is the O-methylated metabolite of epinephrine that can be used for the research of diagnosis of pheochromocytoma.

Neuraminic acid is an acidic amino sugar with a backbone formed by nine carbon atoms. Neuraminic acid may also be visualized as the product of an aldol-condensation of pyruvic acid and D-mannosamine (2-amino-2-deoxy-mannose). Neuraminic acid is a functional group of some biologically active mucoproteins.

18-Hydroxycortisol is an endogenous steroid that secreted by the adrenal cortex. 18-Hydroxycortisol is a cortisol derivative and a steroidogenic intermediate. 18-Hydroxycortisol can be used for primary aldosteronism (PA) research.

Cytidine diphosphate is a nucleoside diphosphate that acts as a carrier for phosphorylcholine, diacylglycerol, and other molecules during phospholipid synthesis.