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-113130
    Eicosadienoic acid
    99.91%
    Eicosadienoic acid is a rare, naturally occurring n-6 polyunsaturated fatty acid found mainly in animal tissues.
    Eicosadienoic acid
  • HY-P2979
    Invertase, baker's yeast (S. cerevisiae)
    Invertase, baker's yeast (S. cerevisiae) is a major enzyme present in plants and microorganisms, is often used in biochemical studies. Invertase catalyzes the hydrolysis of the disaccharide sucrose into glucose and fructose.
    Invertase, baker's yeast (S. cerevisiae)
  • HY-B0504S2
    Creatinine-d5
    99.93%
    Creatinine-d5 is the deuterium labeled Creatinine. Creatinine (NSC13123) is an orally active, blood-brain barrier-permeable modulator of GABAA and NMDA receptors, with activities of antioxidation and metabolic regulation. Creatinine is generated via non-enzymatic conversion of creatine and phosphocreatine in muscle. Creatinine serum levels correlate with muscle mass, glomerular filtration rate, and extrarenal clearance, serving as an evaluation biomarker for renal function, muscle mass, and clinical outcomes, and used for perioperative renal risk assessment. In addition, Creatinine can induce specific Cryptococcus species to produce creatinine deiminase and act as their nitrogen source, while it can be secreted via renal tubules. Creatinine is widely used in research related to various diseases such as neurodegenerative diseases, psychiatric disorders, acute kidney injury, chronic kidney disease, and renal failure.
    Creatinine-d<sub>5</sub>
  • HY-W015967
    Glycolic acid
    Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour.
    Glycolic acid
  • HY-113038A
    α-Hydroxyglutaric acid disodium
    98.0%
    α-Hydroxyglutaric acid (2-Hydroxyglutarate) disodium is an α-hydroxy acid form of glutaric acid. α-Hydroxyglutaric acid disodium is a competitive inhibitor of multiple α-ketoglutarate-dependent dioxygenases, including histone demethylases and the TET family of 5-methlycytosine (5mC) hydroxylases.
    α-Hydroxyglutaric acid disodium
  • HY-N0339
    Syringic acid
    99.85%
    Syringic acid is correlated with high antioxidant activity and inhibition of LDL oxidation.
    Syringic acid
  • HY-113149A
    Argininosuccinic acid disodium
    Argininosuccinic acid disodium is an intermediate metabolite in the urea cycle, and its level is associated with argininosuccinic aciduria. Argininosuccinic acid disodium can induce oxidative stress, leading to lipid and protein oxidation, reduction of glutathione, and decrease in antioxidant enzyme activity. Argininosuccinic acid disodium can be converted into guanidinosuccinic acid, a nitric oxide mimic, under the action of nitric oxide-derived free radicals. Argininosuccinic acid disodium can be used in the research of metabolic diseases, renal failure, nervous system diseases, etc.
    Argininosuccinic acid disodium
  • HY-N0667S2
    L-Asparagine-15N2 monohydrate
    99.95%
    L-Asparagine-15N2 monohydrate is the 15N-labeled L-Asparagine monohydrate (HY-W017443). L-Asparagine monohydrate is an essential amino acid for leukemic cells and a substrate for L-Asparaginase. L-Asparaginase is a potent anti-leukemic enzyme that promotes asparagine (Asn) and glutamine (Gln) depletion and inhibits protein biosynthesis in lymphoblasts. Removal of L-asparagine from plasma by L-Asparaginase results in inhibition of RNA and DNA synthesis and subsequent apoptosis. L-Asparaginase has cell-killing ability in vitro and in vivo, and selectively inhibits the growth of cancer cells with low asparagine synthetase (AASNS) expression. L-Asparagine monohydrate can be used as a biomarker and sensor for the study of childhood acute lymphoblastic leukemia.
    L-Asparagine-<sup>15</sup>N<sub>2</sub> monohydrate
  • HY-W007337
    3-Bromopropan-1-ol
    99.07%
    3-Bromopropan-1-ol is an endogenous metabolite. 3-Bromopropan-1-ol is significantly up-regulated during the estrous period of buffaloes. 3-Bromopropan-1-ol acts as an alkylating agent. 3-Bromopropan-1-ol participates in the enantioselective synthesis of nornicotine enantiomers. 3-Bromopropan-1-ol can be used in studies related to estrus detection in buffaloes.
    3-Bromopropan-1-ol
  • HY-100587
    D-Glutamine
    98.0%
    D-Glutamine is a cell-permeable D type stereoisomer of Glutamine.
    D-Glutamine
  • HY-130413
    Protectin D1
    99.10%
    Protectin D1, a neuroprotectin D1 produced by neuronal cells, is a member of a newly discovered family of bioactive products derived from docosahexaenoic acid. Protectin D1 also serves as a specialized pro-resolving mediator, exhibiting effective in vivo pro-resolving activity in various human disease models. Additionally, Protectin D1 is an inhibitor of NALP3 inflammasomes and regulates the PI3K/AKT and HIF-1α signaling pathways. Protectin D1 exerts anti-inflammatory effects by reducing ROS levels, inhibiting the expression of NALP3, ASC, and Caspase-1, and consequently decreasing the release of pro-inflammatory cytokines IL-1β and IL-18. Furthermore, Protectin D1 enhances miRNA-210 expression, activates the PI3K/AKT signaling pathway, and exerts cardioprotective effects. Protectin D1 holds promise for research in cardiovascular diseases and inflammatory disorders.
    Protectin D1
  • HY-113201
    Tetradecanoylcarnitine
    99.85%
    Tetradecanoylcarnitine is an acylcarnitine involved in mitochondrial β-oxidation of long-chain saturated fatty acids and fatty acid metabolism. Tetradecanoylcarnitine serves as a biomarker for very long-chain acyl-CoA dehydrogenase deficiency and MPTP (HY-15608)-induced Parkinson's disease. Tetradecanoylcarnitine exhibits a characteristic significant elevation in plasma levels in patients with sarcopenia, including those complicated with hypertension, and this elevation is closely associated with an increased risk of death. Tetradecanoylcarnitine is widely used in research on the pathological mechanisms of diseases such as Parkinson's disease and sarcopenia.
    Tetradecanoylcarnitine
  • HY-N0455R
    L-Arginine (Standard)
    L-Arginine (Standard) is the analytical standard of L-Arginine. This product is intended for research and analytical applications. L-Arginine ((S)-(+)-Arginine) is the substrate for the endothelial nitric oxide synthase (eNOS) to generate NO. L-Arginine is transported into vascular smooth muscle cells by the cationic amino acid transporter family of proteins where it is metabolized to nitric oxide (NO), polyamines, or L-proline. L-Arginine is a potent vasodilator, and can be used to induce experimental acute pancreatitis.
    L-Arginine (Standard)
  • HY-W001160
    5-Hydroxyindole
    99.94%
    5-Hydroxyindole is an orally active hydroxylated indole and tryptophan metabolite. 5-Hydroxyindole activates α7 nicotinic acetylcholine receptors and acts on intestinal L-type calcium channels. 5-Hydroxyindole slows down the desensitization of 5-HT3 receptor-mediated ion currents in cells. 5-Hydroxyindole causes convulsions and loss of consciousness. 5-Hydroxyindole is used in the study of neuroblastoma, schizophrenia, and diseases related to intestinal motility disorders.
    5-Hydroxyindole
  • HY-N0391R
    L-Citrulline (Standard)
    L-Citrulline (Standard) is the analytical standard of L-Citrulline. This product is intended for research and analytical applications. L-Citrulline is an amino acid derived from ornithine in the catabolism of proline or glutamine and glutamate, or from l-arginine via arginine-citrulline pathway.
    L-Citrulline (Standard)
  • HY-N1428A
    Citric acid monohydrate
    98.0%
    Citric acid monohydrate is a natural preservative and food tartness enhancer. Citric acid monohydrate induces apoptosis and cell cycle arrest at G2/M phase and S phase in HaCaT cells. Citric acid monohydrate cause oxidative damage of the liver by means of the decrease of antioxidative enzyme activities. Citric acid monohydrate is also an acidulant, emulsifier, sequestrant and buffering agent widely used across many industries.
    Citric acid monohydrate
  • HY-N0148R
    Rutin (Standard)
    Rutin (Standard) is the analytical standard of Rutin. This product is intended for research and analytical applications. Rutin (Rutoside) is a flavonoid found in many plants and shows a wide range of biological activities including anti-inflammatory, antidiabetic, antioxidant, neuroprotective, nephroprotective, hepatoprotective and reducing Aβ oligomer activities. Rutin is also a CBR1 inhibitor, which can cross the blood brain barrier. Rutin attenuates vancomycin-induced renal tubular cell apoptosis via suppression of apoptosis, mitochondrial dysfunction, and oxidative stress.
    Rutin (Standard)
  • HY-W050026S
    Phenylacetylglutamine-d5
    99.9%
    Phenylacetylglutamine-d5 (NSC 203800-d5) is the deuterium labeled Phenylacetylglutamine (HY-W050026). Phenylacetylglutamine is a colonic microbial metabolite from amino acid fermentation.
    Phenylacetylglutamine-d<sub>5</sub>
  • HY-B1391
    D-Panthenol
    99.98%
    D-Panthenol is the biologically-active alcohol of pantothenic acid, which leads to an elevation in the amount of coenzyme A in the cell. D-panthenol exhibits nephroprotective effect in AKI, promotes tissue repair and regeneration.
    D-Panthenol
  • HY-B0351S
    Taurine-d4
    99.96%
    Taurine-d4 is the deuterium labeled Taurine. Taurine, a sulphur-containing amino acid and an organic osmolyte involved in cell volume regulation, provides a substrate for the formation of bile salts, and plays a role in the modulation of intracellular free calcium concentration. Taurine has the ability to activate autophagy in adipocytes.
    Taurine-d<sub>4</sub>
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