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-113402R
    Gamma-glutamylcysteine (Standard)
    Gamma-glutamylcysteine (Standard) is the analytical standard of Gamma-glutamylcysteine. This product is intended for research and analytical applications. Gamma-glutamylcysteine (γ-Glu-Cys) is an orally active, blood-brain barrier permeable dipeptide. Gamma-glutamylcysteine activates AMPK, SIRT1, IL-4/STAT6, AC/cAMP/PI3K, IGF-1R/IRS1/PI3K, and Nrf2 signaling pathways; it inhibits NF-κB, JAK1/STAT1/3, MAPKs, cadmium-induced p38 MAPK, JNK, and PI3K/Akt signaling pathways. Gamma-glutamylcysteine regulates macrophage polarization, modulates the trafficking of CD36 and GLUT4, induces glutathione synthesis, improves metabolic dysfunction, reduces lipid deposition, ameliorates glucose homeostasis, inhibits apoptosis (Apoptosis), stabilizes mitochondria, suppresses lipid peroxidation, iron accumulation and ferroptosis (Ferroptosis), reduces ds-HMGB1 levels, reverses mechanical hyperalgesia, and alleviates hepatic lipid droplet formation. Gamma-glutamylcysteine is applicable to research related to inflammatory bowel disease, type 2 diabetes, cadmium-induced neurotoxicity, Alzheimer's disease, cerebral ischemia/reperfusion injury, neuropathy, and alcoholic liver disease.
    Gamma-glutamylcysteine (Standard)
  • HY-164690A
    Nicotinamide-guanine dinucleotide sodium
    Nicotinamide-guanine dinucleotide sodium, a NAD sodium (HY-B0445A) analog, is an oxidized forms of nicotinamide guanine dinucleotide. Nicotinamide-guanine dinucleotide sodium serves as coenzymes for alcohol dehydrogenase (ADH) in vitro.
    Nicotinamide-guanine dinucleotide sodium
  • HY-W342604R
    N-Acetylputrescine (Standard)
    1,4-Dicaffeoylquinic acid (Standard) is the analytical standard of 1,4-Dicaffeoylquinic acid. This product is intended for research and analytical applications. 1,4-Dicaffeoylquinic acid (1,4-DCQA) is a phenylpropanoid from Xanthii fructus, inhibits LPS-stimulated TNF-α production.
    N-Acetylputrescine (Standard)
  • HY-111952
    SR-4995
    98.26%
    SR-4995 (CID 16016685) is a highly effective and selective ligand for α-β-hydrolase domain-containing 5 (ABHD5), facilitating the activation of adipose triglyceride lipase (ATGL) by displacing ABHD5 from its inhibitory regulators, perilipin-1 (PLIN1) and PLIN5. It directly interacts with ABHD5, inhibiting its association with PLIN1, and promotes lipolysis in adipocytes and muscle tissues while circumventing PKA-dependent signaling pathways.
    SR-4995
  • HY-10219GL
    Rapamycin (GMP Like)
    Rapamycin (Sirolimus) GMP Like is Rapamycin (HY-10219) produced by using GMP like guidelines. GMP Like small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. Rapamycin (Sirolimus; AY 22989) is a potent and specific mTOR inhibitor with an IC50 of 0.1 nM in HEK293 cells. Rapamycin binds to FKBP12 and specifically acts as an allosteric inhibitor of mTORC1. Rapamycin is an autophagy activator, an immunosuppressant.
    Rapamycin (GMP Like)
  • HY-13715AR
    Norepinephrine hydrochloride (Standard)
    Norepinephrine (hydrochloride) (Standard) is the analytical standard of Norepinephrine (hydrochloride). This product is intended for research and analytical applications. Norepinephrine (Levarterenol; L-Noradrenaline) hydrochloride is a potent adrenergic receptor (AR) agonist. Norepinephrine activates α1, α2, β1 receptors[1][2][3][4].
    Norepinephrine hydrochloride (Standard)
  • HY-W012926S1
    Dihydrouracil-d4
    99.97%
    Dihydrouracil-d4 is the deuterium labeled Dihydrouracil. Dihydrouracil (HY-W012926), a metabolite of Uracil, can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient.
    Dihydrouracil-d<sub>4</sub>
  • HY-Y0921S
    (±)-1,2-Propanediol-d8
    99.55%
    (±)-1,2-Propanediol-d8 is the deuterium labeled (±)-1,2-Propanediol. (±)-1,2-Propanediol (1,2-(RS)-Propanediol) is an aliphatic alcohol and frequently used as an excipient in many agent formulations to increase the solubility and stability of agents.
    (±)-1,2-Propanediol-d<sub>8</sub>
  • HY-N0733S3
    Glucosamine-6-13C hydrochloride
    98.0%
    Glucosamine-6-13C (hydrochloride) is the 13C labeled Glucosamine hydrochloride. Glucosamine hydrochloride (D-Glucosamine hydrochloride) is an amino sugar and a prominent precursor in the biochemical synthesis of glycosylated proteins and lipids, is used as
    Glucosamine-6-<sup>13</sup>C hydrochloride
  • HY-Y0966S10
    Glycine-d3
    99.97%
    Glycine-d3 is the deuterium labeled Glycine. Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate, facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors.
    Glycine-d<sub>3</sub>
  • HY-B1659S4
    Glycerol-13C2
    99%
    Glycerol-13C2 is the 13C labeled Glycerol. Glycerol is used in sample preparation and gel formation for polyacrylamide gel electrophoresis.
    Glycerol-<sup>13</sup>C<sub>2</sub>
  • HY-113081R
    1-Methyladenosine (Standard)
    1-Methyladenosine (Standard) is the analytical standard of 1-Methyladenosine. This product is intended for research and analytical applications. 1-Methyladenosine is an RNA modification that can serve as a tumor marker, with elevated levels in the body associated with cancer development. Following 1-methyladenosine methylation, upregulation of PPARδ expression regulates cholesterol metabolism and activates Hedgehog signaling pathway, driving liver tumorigenesis. In Vitro:Compared to surrounding tumor tissues, 1-methyladenosine methylation in RNA is aberrantly elevated in hepatocellular carcinoma (HCC) cell lines and liver cancer stem cells (CSCs). Methylated 1-methyladenosine can promote cholesterol synthesis and activate the Hedgehog signaling pathway by enhancing the translation of PPARδ in liver CSCs, ultimately driving the self-renewal and tumorigenesis of liver cancer stem cells.
    1-Methyladenosine (Standard)
  • HY-B0158S6
    Cytidine-15N3
    99.3%
    Cytidine-15N3 is the 15N labeled Cytidine. Cytidine is a pyrimidine nucleoside and acts as a component of RNA. Cytidine is a precursor of uridine. Cytidine controls neuronal-glial glutamate cycling, affecting cerebral phospholipid metabolism, catecholamine synthesis, and mitochondrial function.
    Cytidine-<sup>15</sup>N<sub>3</sub>
  • HY-W014423S2
    L-Histidine-13C6 hydrochloride hydrate
    98.00%
    L-Histidine-13C6 (hydrochloride hydrate) is the 13C-labeled L-Histidine hydrochloride hydrate (HY-W014423). L-Histidine hydrochloride hydrate is an endogenous metabolite. L-Histidine hydrochloride hydrate scavenges hydroxyl radicals and singlet oxygen, regulate the absorption of zinc, copper and iron, exhibits anti-inflammatory and antioxidant activities. L-Histidine hydrochloride hydrate is blood brain barrier penetrable.
    L-Histidine-<sup>13</sup>C<sub>6</sub> hydrochloride hydrate
  • HY-B0228S4
    Adenosine-1′-13C
    Adenosine-1′-13C is the 13C labeled Adenosine. Adenosine (Adenine riboside), a ubiquitous endogenous autacoid, acts through the enrollment of four G protein-coupled receptors: A1, A2A, A2B, and A3. Adenosine affects almost all aspects of cellular physiolo
    Adenosine-1′-<sup>13</sup>C
  • HY-132334S
    9-cis-Retinoic acid-d5
    99.24%
    9-cis-Retinoic acid-d5 is the deuterium labeled 9-cis-Retinoic acid. 9-cis-Retinoic acid (ALRT1057), a vitamin A derivative, is a potent RAR/RXR agonist. 9-cis-Retinoic acid induces apoptosis, regulates cell cycle and has anticancer, anti-inflammatory and neuroprotection activities.
    9-cis-Retinoic acid-d<sub>5</sub>
  • HY-16637S1
    Folic acid-d4
    Folic acid-d4 is the deuterium labeled Folic acid. Folic acid (Vitamin M; Vitamin B9) is a B vitamin; is necessary for the production and maintenance of new cells, for DNA synthesis and RNA synthesis.
    Folic acid-d<sub>4</sub>
  • HY-124265S
    4β-Hydroxycholesterol-d7
    99.94%
    4β-Hydroxycholesterol-d7 is the deuterium labeled 4β-Hydroxycholesterol (HY-124265). 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-d<sub>7</sub>
  • HY-10585S1
    Valproic acid-d6
    99.83%
    Valproic acid-d6 is the deuterium labeled Valproic acid. Valproic acid (VPA; 2-Propylpentanoic Acid) is an HDAC inhibitor, with IC50 in the range of 0.5 and 2 mM, also inhibits HDAC1 (IC50, 400 μM), and induces proteasomal degradation of HDAC2. Valproic acid activates Notch1 signaling and inhibits proliferation in small cell lung cancer (SCLC) cells. Valproic acid sodium salt is used in the treatment of epilepsy, bipolar disorder and prevention of migraine headaches.
    Valproic acid-d<sub>6</sub>
  • HY-W009300S
    4-Hydroxyestrone-d4
    99.35%
    4-Hydroxyestrone (4-OHE1)-d4 is the deuterium labeled 4-Hydroxyestrone (HY-W009300). 4-Hydroxyestrone is a brain-penetrant estrogen metabolite. 4-Hydroxyestrone shows neuroprotective effects involving increased cytoplasmic localization of p53 resulting from SIRT1-mediated p53 deacetylation. 4-Hydroxyestrone relies on PDI to mediate its protective effect against chemically induced ferroptosis in estrogen receptor-negative cancer cells. 4-Hydroxyestrone inhibits lipid peroxidation and lipid-ROS accumulation. 4-Hydroxyestrone blocks preovulatory luteinizing hormone surges in Rattus norvegicus. 4-Hydroxyestrone can be used for the researches of neurodegeneration, breast cancer and endocrine disease.
    4-Hydroxyestrone-d<sub>4</sub>
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