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-113470
    LysoPC(16:1(9Z))
    98.3%
    LysoPC(16:1(9Z)) is a type of lysophosphatidylcholine that can be used to study spleen deficiency syndrome.
    LysoPC(16:1(9Z))
  • HY-B1473S
    Serotonin-d4 hydrochloride
    99.48%
    Serotonin-d4 (5-Hydroxytryptamine-d4) hydrochloride is the deuterium labeled Serotonin (hydrochloride) (HY-B1473). Serotonin (5-Hydroxytryptamine) hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.
    Serotonin-d<sub>4</sub> hydrochloride
  • HY-B0389R
    D-Glucose (Standard)
    D-Glucose (Standard) is the analytical standard of D-Glucose. This product is intended for research and analytical applications. D-Glucose is the naturally occurring form of glucose and the most abundant monosaccharide. D-Glucose is a critical components of the general metabolism, and serve as critical signaling molecules in relation to both cellular metabolic status and biotic or abiotic stress response.
    D-Glucose (Standard)
  • HY-158766
    3-sucCA
    99.75%
    3-sucCA is an orally available bacterial bile acid that exerts anti-MASH effects by promoting the growth of Akkermansia muciniphila. By remodeling the intestinal microbiota and promoting the growth of Akkermansia, 3-sucCA can improve intestinal barrier damage and reduce chronic low-level inflammation, thereby alleviating the progression of metabolic dysfunction-associated steatohepatitis (MASH). 3-sucCA accelerates the synthesis of cell wall peptidoglycan and has in vivo efficacy in the mouse MAFL-MASH model. 3-sucCA levels are low in the MAFLD model and are mainly used in the study of MASH.
    3-sucCA
  • HY-41325
    7,12-Diketolithocholic acid
    99.93%
    7,12-Diketolithocholic acid (7,12-Diketo-LCA) is a bile acid, which can be produced in the host-gut microbial co-metabolism of the bile acid pool.
    7,12-Diketolithocholic acid
  • HY-F0003R
    NADPH tetrasodium salt (Standard)
    NADPH tetrasodium salt (Standard) is the analytical standard of NADPH tetrasodium salt (HY-F0003). This product is intended for research and analytical applications. NADPH tetrasodium salt functions as an important cofactor in a variety of metabolic and biosynthetic pathways. NADPH tetrasodium salt is an endogenous inhibitor of ferroptosis. NADPH tetrasodium salt plays a vital role in the biosynthesis of agents, chiral alcohols, fatty acids and biopolymers, while also being required for lipid biosynthesis, biomass formation, and cell replication.
    NADPH tetrasodium salt (Standard)
  • HY-W015967S
    Glycolic acid-d2
    98.54%
    Glycolic acid-d2 is the deuterium labeled Glycolic acid. Glycolic acid is an inhibitor of tyrosinase, suppressing melanin formation and lead to a lightening of skin colour.
    Glycolic acid-d<sub>2</sub>
  • HY-113527S
    TRIA-662-d3
    99.60%
    TRIA-662-d3 is the deuterium labeled TRIA-662. TRIA-662 (1-Methylnicotinamide chloride) is an endogenous metabolite. TRIA-662 shows antithrombotic and anti-inflammatory activities.
    TRIA-662-d<sub>3</sub>
  • HY-156041
    Lysophosphatidylethanolamines, egg
    99.0%
    Lysophosphatidylethanolamine (LPE) is a naturally-occurring lysophospholipid that can be generated via deacylation of phosphatidylethanolamine by phospholipase A2 (PLA2). It increases the phosphorylation of ERK1/2 in PC12 cells, an effect that can be blocked by the MEK inhibitors U-0126 (HY-12031A) and PD 98059 (HY-12028) and the EGFR inhibitor AG-1478 (HY-13524).1 LPE also increases neurite outgrowth and expression of neurofilament M in PC12 cells. LPE inhibits the activity of phospholipase D (PLD) partially purified from cabbage.3 This product contains lysophosphatidylethanolamine molecular species with variable fatty acyl chain lengths at the sn-1 position and a hydroxy group at the sn-2 position.
    Lysophosphatidylethanolamines, egg
  • HY-113446
    Leukotriene C4
    Leukotriene C4 is a eicosanoid lipid mediator and produced by immune cells during type 2 inflammation. Leukotriene C4 can mediate inflammation,allergy, bronchoconstriction, and vascular leakage.
    Leukotriene C4
  • HY-B0617S1
    S-Adenosyl-L-methionine-13C
    99.93%
    S-Adenosyl-L-methionine-13C (S-Adenosyl methionine-13C) is the 13C labeled S-Adenosyl-L-methionine (HY-B0617). S-Adenosyl-L-methionine (S-Adenosyl methionine) is produced endogenously from methionine and ATP by action of the enzyme methionine adenosyltransferase and is an important orally active methyl group donor. S-Adenosyl-L-methionine is a dietary supplement with potent antidepressant effects, and has the potential for liver disease and osteoarthritis research.
    S-Adenosyl-L-methionine-<sup>13</sup>C
  • HY-B0442A
    Vardenafil hydrochloride
    99.79%
    Vardenafil hydrochloride is a selective and orally active inhibitor of phosphodiesterase-5 (PDE5), with an IC50 of 0.7 nM. Vardenafil hydrochloride shows inhibitory towards PDE1, PDE6 with IC50s of 180 nM, and 11 nM, while IC50s are >1000 nM for PDE3 and PDE4. Vardenafil hydrochloride competitively inhibits cyclic guanosine monophosphate (cGMP) hydrolysis and thus increases cGMP levels. Vardenafil hydrochloride can be used for the research of erectile dysfunction, hepatitis, diabetes[1]-[6].
    Vardenafil hydrochloride
  • HY-N0771R
    L-Isoleucine (Standard)
    L-Isoleucine (Standard) is the analytical standard of L-Isoleucine. This product is intended for research and analytical applications. L-Isoleucine is an orally active branched chain amino acid, which is the L-enantiomer of isoleucine. L-Isoleucine has a role as a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite, a plant metabolite, a human metabolite, an algal metabolite and a mouse metabolite. L-Isoleucine regulates the inflammatory response to protect against pathogens in vivo and in vitro.
    L-Isoleucine (Standard)
  • HY-117029
    NAAD sodium
    99.88%
    NAAD sodium (Deamido nad sodium), a functional NAD+ precursor, is the substrate of glutamine-dependent NAD+ synthetase. NAAD sodium is used to study the structure of nicotinate mononucleotide adenylyltransferases.
    NAAD sodium
  • HY-N0650S8
    L-Serine-d3
    99.75%
    L-Serine-d3 is the deuterium labeled L-Serine. L-Serine ((-)-Serine; (S)-Serine), one of the so-called non-essential amino acids, plays a central role in cellular proliferation.
    L-Serine-d<sub>3</sub>
  • HY-156197
    Biotin-cholesterol
    Biotin-cholesterol is a biotinylated form of Cholesterol (HY-N0322). Biotin-cholesterol can be used in the synthesis of biotin-conjugated liposomes and micelles for drug delivery.
    Biotin-cholesterol
  • HY-W032915
    5-Phenylvaleric acid
    98.14%
    5-Phenylvaleric acid (5-Phenylpentanoic acid) is a major metabolite produced by the gut microbiota during the metabolism of flavan-3-ols and can serve as a biomarker for flavan-3-ol intake. 5-Phenylvaleric acid can also be used as a raw material for the synthesis of polyhydroxyalkanoates.
    5-Phenylvaleric acid
  • HY-W017006S
    1-Methyl-L-histidine-d3
    99.64%
    1-Methyl-L-histidine-d3 is the deuterium labeled 1-Methyl-L-histidine. 1-Methyl-L-histidine is an objective indicator of meat ingestion and exogenous 3-methylhistidine (3MH) intake.
    1-Methyl-L-histidine-d<sub>3</sub>
  • HY-W015874
    2-Hydroxy-2-methylbutanoic acid
    98.0%
    2-Hydroxy-2-methylbutanoic acid is a branched-chain fatty acid. 2-Hydroxy-2-methylbutanoic acid accumulates at high levels in the culture supernatants of colorectal cancer-associated bacteria. 2-Hydroxy-2-methylbutanoic acid is also present in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease.
    2-Hydroxy-2-methylbutanoic acid
  • HY-W017163
    7-Methylxanthine
    99.94%
    7-Methylxanthine is an orally active methyl derivative of xanthine and a non-selective adenosine receptor antagonist. 7-Methylxanthine is also one of the purine components of human urinary calculi. 7-Methylxanthine has anti-myopia activity.
    7-Methylxanthine
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