1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Endogenous Metabolite

Endogenous Metabolite

Endogenous metabolites refer to the collective set of small-molecule chemical substances present within organelles, cells, organs, biological fluids, or entire organisms; their molecular weights are typically less than 1500 Da. These endogenous metabolites—including lipids, amino acids, short peptides, nucleic acids, carbohydrates, alcohols, and organic acids—not only participate in signal transduction governing genomic function but also receive upstream signals from the environment, thereby bridging the interrelationships among genotype, environment, and phenotype. Based on their biological functions, microbial endogenous metabolites can be broadly classified into two categories: primary metabolites and secondary metabolites. Primary metabolites are the core molecules essential for supporting microbial growth and proliferation; they serve to provide energy to the microbes or act as precursors and cofactors for the synthesis of biological macromolecules. In contrast, microbial secondary metabolites are a class of low-molecular-weight products that are not strictly essential for microbial growth. Nevertheless, microbial secondary metabolites include numerous substances—such as antibiotics, anti-tumor agents, and cholesterol-lowering agents—that are of critical importance to human health[1][2][3]. Furthermore, the metabolome of a biological organism is influenced by a variety of endogenous factors, including age, sex, body composition, genetic background, and underlying pathological states. The small-molecule metabolites within an organism are diverse and highly distinct; their levels are typically subject to the synergistic regulation of a vast array of enzymes and transport proteins, undergoing processes of synthesis, transformation, degradation, and compartmentalized distribution. Metabolomics research based on endogenous metabolites has been widely applied in the fields of metabolic disorders, neurodegenerative diseases, cancer, cardiovascular diseases, and infectious diseases, where these metabolites hold potential utility as biomarkers or therapeutic targets[1][2][3].

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-113408
    Tiglyl carnitine
    99.83%
    Tiglyl carnitine is found to be associated with celiac disease and mitochondrial acetoacetyl-CoA thiolase (T2) deficiency.
    Tiglyl carnitine
  • HY-W015224
    Methyl 2-(1H-indol-3-yl)acetate
    99.90%
    Methyl 2-(1H-indol-3-yl)acetate is an indole ester.Methyl 2-(1H-indol-3-yl)acetate serves as a precursor for synthesis of S-alkylated/aralkylated 2-(1H-indol-3-ylmethyl)-1,3,4-oxadiazole-5-thiol derivatives.
    Methyl 2-(1H-indol-3-yl)acetate
  • HY-76547
    p-Toluic acid
    99.93%
    p-Toluic acid (4-Methylbenzoic acid), coumarin, is a substituted benzoic acid. p-Toluic acidis synthetic p-aminomethylbenzoic acid (PAMBA), intermediates such as p-toluonitrile. p-Toluic acidMay have potential reproductive toxicity, press 1g/kgRepeated administration of doses can produce a variety of adverse effects on the epididymis.
    p-Toluic acid
  • HY-124265
    4β-Hydroxycholesterol
    99.96%
    4β-Hydroxycholesterol is a major Cholesterol (HY-N0322) metabolite and a precursor in the synthesis of bile acids that is found in human circulation.
    4β-Hydroxycholesterol
  • HY-108398B
    11(Z),14(Z),17(Z)-Eicosatrienoic acid
    99.94%
    11(Z),14(Z),17(Z)-Eicosatrienoic acid is an unsaturated fatty acid that can maintain the continued replication of functional mitochondria in Saccharomyces cerevisiae (KD115).
    11(Z),14(Z),17(Z)-Eicosatrienoic acid
  • HY-N1902S
    4-Hydroxyphenylacetic acid-d6
    99.16%
    4-Hydroxyphenylacetic acid-d6 is the deuterium labeled 4-Hydroxyphenylacetic acid. 4-hydroxyphenylacetic acid, a major microbiota-derived metabolite of polyphenols, is involved in the antioxidative action. 4-hydroxyphenylacetic acid induces expression of Nrf2.
    4-Hydroxyphenylacetic acid-d<sub>6</sub>
  • HY-W017469
    Mesitaldehyde
    98.13%
    Mesitaldehyde is an endogenous metabolite.
    Mesitaldehyde
  • HY-113266
    Valerylcarnitine
    ≥99.0%
    Valerylcarnitine is an endogenous metabolite, belonging to the short-chain acylcarnitines. Valerylcarnitine acts as a metabolomic biomarker for ionizing radiation exposure in nonhuman primates. Valerylcarnitine can be used for the research of type 1 diabetes.
    Valerylcarnitine
  • HY-B1716S
    L-5-Hydroxytryptophan-d3
    99.9%
    L-5-Hydroxytryptophan-d3 is the deuterium labeled L-5-Hydroxytryptophan. L-5-Hydroxytryptophan (L-5-HTP), a naturally occurring amino acid and a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, is the immediate precursor of the neurotransmitter serotonin and a reserpine antagonist. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia.
    L-5-Hydroxytryptophan-d<sub>3</sub>
  • HY-125773
    β-cyano-L-Alanine
    99.90%
    β-cyano-L-Alanine (Beta-cyano-l-alanine), a nitrile of widespread occurrence in higher plants, is enzymatically produced by cyanoalanine synthase from cyanide and cysteine as substrates. β-cyano-L-Alanine abolishes the protective effect of ethanol on cerebral ischemia/reperfusion (I/R) injury.
    β-cyano-L-Alanine
  • HY-113411S
    3-Hydroxyglutaric acid-d5
    99.72%
    3-Hydroxyglutaric acid-d5 is the deuterium labeled 3-Hydroxyglutaric acid. 3-Hydroxyglutaric acid is a glutaric acid derivative.
    3-Hydroxyglutaric acid-d<sub>5</sub>
  • HY-18260S
    Bisphenol A-d16
    99.95%
    Bisphenol A-d16 is the deuterium labeled Bisphenol A. Bisphenol A is a phenolic, organic synthetic compound widely used in the production of polycarbonate plastics and epoxy resins. Bisphenol A is a reproductive, developmental, and systemic toxicant, often classified as an endocrine-disrupting compound (EDC). Bisphenol A is associated with many diseases, including cardiovascular diseases, respiratory diseases, diabetes, kidney diseases, obesity, and reproductivedisorders.
    Bisphenol A-d<sub>16</sub>
  • HY-113327
    1,3,7-Trimethyluric acid
    99.99%
    1,3,7-Trimethyluric acid is the metabolite of caffeine. The metabolic ratio 1,3,7-Trimethyluric acid to caffeine can be evaluated as a biomarker to describe variability in CYP3A activity in a cohort.
    1,3,7-Trimethyluric acid
  • HY-Y0252S5
    L-Proline-d7
    99.3%
    L-Proline-d7 is the deuterium labeled L-Proline. L-Proline is one of the twenty amino acids used in living organisms as the building blocks of proteins.
    L-Proline-d<sub>7</sub>
  • HY-118774
    Propofol β-D-glucuronide
    99.55%
    Propofol β-D-glucuronide is a metabolite of Propofol sulfate and can be used for diagnosis to distinguish colorectal cancer from healthy individuals.
    Propofol β-D-glucuronide
  • HY-N0172R
    Caffeic acid (Standard)
    Caffeic acid (Standard) is the analytical standard of Caffeic acid. This product is intended for research and analytical applications. Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).
    Caffeic acid (Standard)
  • HY-B1337R
    Choline chloride (Standard)
    Choline (chloride) (Standard) is the analytical standard of Choline (chloride). This product is intended for research and analytical applications. Choline chloride is an essential nutrient that activates alpha7 nicotinic receptors and has analgesic and anti-inflammatory activity. Glycerophosphoinositol choline can affect diseases such as liver disease, atherosclerosis and neurological disorders.
    Choline chloride (Standard)
  • HY-A0070R
    Liothyronine sodium (Standard)
    Liothyronine (sodium) (Standard) is the analytical standard of Liothyronine (sodium). This product is intended for research and analytical applications. Liothyronine sodium is an active form of thyroid hormone. Liothyronine sodium is a potent thyroid hormone receptors TRα and TRβ agonist with Kis of 2.33 nM for hTRα and hTRβ, respectively.
    Liothyronine sodium (Standard)
  • HY-W015851S2
    (R)-3-Hydroxybutanoic acid-13C4 sodium
    98.0%
    (R)-3-Hydroxybutanoic acid-13C4 sodium is a 13C labeled (R)-3-Hydroxybutanoic acid (HY-W051723). (R)-3-Hydroxybutanoic acid is a metabolite converted from acetoacetic acid catalyzed by 3-hydroxybutyrate dehydrogenase. (R)-3-Hydroxybutanoic acid can function as a nutrition source, and as a precursor for vitamins, antibiotics and pheromones.
    (R)-3-Hydroxybutanoic acid-<sup>13</sup>C<sub>4</sub> sodium
  • HY-N2024AS1
    Maltose-13C12 monohydrate
    99.50%
    Maltose monohydrate-13C12 is the 13C labeled isotope of Maltose monohydrate. Maltose monohydrate is a disaccharide composed of two glucose molecules linked together. Maltose monohydrate is an endogenous metabolic product in plants, yeast, or bacteria, and it participates in carbon source storage and metabolism. Maltose monohydrate is a key core metabolite and main transport form in the temporary starch degradation, carbon output, and subsequent sucrose synthesis metabolism of the night chloroplast. In X. dendrorhous, maltose can act as a sugar donor and is converted into isomaltulose by α-glucosidase. Maltose monohydrate can act as a osmotic agent, supporting continuous capillary ultrafiltration and preventing severe metabolic disorders.
    Maltose-<sup>13</sup>C<sub>12</sub> monohydrate
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