2. Signaling Pathways
  3. Metabolic Enzyme/Protease
  4. Aldehyde Dehydrogenase (ALDH)

Aldehyde Dehydrogenase (ALDH)

Aldehyde Dehydrogenase (ALDH)

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Aldehyde Dehydrogenases (ALDHs) are a superfamily of NADP+-dependent enzymes that metabolize endogenous and exogenous aldehydes to corresponding carboxylic acids. This superfamily of proteins is comprised of 19 isozymes, with constitutive activity of at least one isozyme observed in a majority of mammalian tissues. The ALDHs play important roles, among other things, in cellular detoxification, the protection against ultraviolet radiation-induced damage, and amino acid metabolism.

The ALDH1A subfamily plays a pivotal role in embryogenesis and development by mediating retinoic acid signaling. ALDH2, as a key enzyme that oxidizes acetaldehyde, is crucial for alcohol metabolism. ALDH1A1 and ALDH3A1 are lens and corneal crystallins, which are essential elements of the cellular defense mechanism against ultraviolet radiation-induced damage in ocular tissues. Many ALDH isozymes are important in oxidizing reactive aldehydes derived from lipid peroxidation and thereby help maintain cellular homeostasis. Increased expression and activity of ALDH isozymes have been reported in various human cancers and are associated with cancer relapse. As a direct consequence of their significant physiological and toxicological roles, inhibitors of the ALDH enzymes have been developed to treat human diseases.

Aldehyde Dehydrogenase (ALDH) Isoform Specific Products:

Aldehyde Dehydrogenase (ALDH) Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-113466S
    4-Hydroxynonenal-d3
    		Inhibitor 99.0%
    4-Hydroxynonenal-d3 is the deuterium labeled 4-Hydroxynonenal. 4-Hydroxynonenal (4-HNE) is an α,β unsaturated hydroxyalkenal and an oxidative/nitrosative stress biomarker. 4-Hydroxynonenal is a substrate and an inhibitor of acetaldehyde dehydrogenase 2 (ALDH2). 4-Hydroxynonenal can modulate a number of signaling processes mainly through forming covalent adducts with nucleophilic functional groups in proteins, nucleic acids, and membrane lipids. 4-Hydroxynonenal plays an important role in cancer through mitochondria.
    4-Hydroxynonenal-d<sub>3</sub>
  • HY-176716
    ALDH2 activator 1
    		Agonist 98.88%
    ALDH2 activator 1 (Compound Z17) is an allosteric aldehyde dehydrogenase 2 (ALDH2) agonist. ALDH2 activator 1 enhances cardiac function and reduces myocardial necrosis in a mouse model of myocardial ischemia-reperfusion. ALDH2 activator 1 is promising for research of cardiovascular diseases such as myocardial infarction (MI).
    ALDH2 activator 1
  • HY-164605
    (6S)-CP-470711
    		Inhibitor 98.75%
    (6S)-CP-470711 (Compound 8) is an inhibitor for sorbitol dehydrogenase, that inhibits human and rat SDH with IC50 of 19 nM and 27 nM. (6S)-CP-470711 ameliorates the Streptozotocin (HY-13753)-induced diabetes in rats models.
    (6S)-CP-470711
  • HY-139031
    ALDH1A2-IN-1
    		Inhibitor 98.05%
    ALDH1A2-IN-1 is an active site-directed reversible ALDH1A2 inhibitor (IC50=0.91 μM; Kd=0.26 μM) with several hydrophobic interactions.
    ALDH1A2-IN-1
  • HY-118980
    Sorbitol dehydrogenase-IN-1
    		Inhibitor 98.70%
    Sorbitol dehydrogenase-IN-1 is a potent and orally active sorbitol dehydrogenase inhibitor with IC50 s of 4, 5 nM for rat and human, respectively. Sorbitol Dehydrogenase (SDH) is an enzyme that belongs to the zinc-containing alcohol dehydrogenase (ADH) family. ADH and ALDH are enzymes that work together to metabolize alcohol.
    Sorbitol dehydrogenase-IN-1
  • HY-107030
    Nitrefazole
    		Inhibitor 99.44%
    Nitrefazole is a 4-nitroimidazole derivative with strong and long lasting inhibition of aldehyde dehydrogenase (ALDH), an enzyme involved in the metabolism of alcohol.
    Nitrefazole
  • HY-112277
    NCT-505
    		Inhibitor 99.37%
    NCT-505 is a potent and selective aldehyde dehydrogenase (ALDH1A1) inhibitor, with an IC50 of 7 nM, and weakly inhibits hALDH1A2, hALDH1A3, hALDH2, hALDH3A1 (IC50s, >57, 22.8, 20.1, >57 μM).
    NCT-505
  • HY-N0018R
    Daidzin (Standard)
    		Inhibitor
    Daidzin (Standard) is the analytical standard of Daidzin. This product is intended for research and analytical applications. Daidzin is an isoflavone with antioxidant, anticancer, and antiatherosclerotic activities. Daidzin is a potent and selective inhibitor of mitochondrial ALDH-2. Daidzin reduces ethanol consumption.
    Daidzin (Standard)
  • HY-N7083R
    Citral (Standard)
    		Inhibitor
    Citral (Standard) is the analytical standard of Citral. This product is intended for research and analytical applications. Citral is an orally active monoterpene compound in lemon grass essential oil and a natural ALDH1A inhibitor, which can induce apoptosis and cycle arrest in breast cancer cell lines, and has analgesic, anti-injurious and anti-inflammatory effects.
    Citral (Standard)
  • HY-RS00570
    Aldh2 Rat Pre-designed siRNA Set A
    		Inhibitor

    Aldh2 Rat Pre-designed siRNA Set A contains three designed siRNAs for Aldh2 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Aldh2 Rat Pre-designed siRNA Set A
  • HY-148243
    IGUANA-1 free base
    		Inhibitor 99.69%
    IGUANA-1 free base (STL5-T-0057) is an selective ALDH1 B1 inhibitor with an IC50 value of 30 nM. IGUANA-1 free base inhibits cell growth of SW480 cells in adherent and spheroid conditions with IC50 values of 2.46 and 0.39 μM, respectively. IGUANA-1 free base can be used for the research of cancer.
    IGUANA-1 free base
  • HY-126241
    RV01
    		Inhibitor 98.06%
    RV01 is an analogue of resveratrol, inhibits DNA damage, reduces acetaldehyde dehydrogenase 2 (ALDH2) mRNA expression induced by ethanol, and exhibits hydroxyl radical scavenging activity. RV01 decreases iNOS expression, with anti-neuroinflammatory activity.
    RV01
  • HY-W207195
    7-Hydroxy-4-phenylcoumarin
    		Inhibitor
    7-Hydroxy-4-phenylcoumarin is a dual ALDH-2 and MAO inhibitor, with IC50 values of 1.5 and 0.5 µM, respectively.
    7-Hydroxy-4-phenylcoumarin
  • HY-124766
    ABD-3001
    		Inhibitor
    ABD-3001 is an inhibitor of ALDH1. ABD-3001 can be studied in research on refractory/relapsed acute myeloid leukemia and high-risk myelodysplastic syndrome.
    ABD-3001
  • HY-RS00568
    ALDH2 Human Pre-designed siRNA Set A
    		Inhibitor

    ALDH2 Human Pre-designed siRNA Set A contains three designed siRNAs for ALDH2 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    ALDH2 Human Pre-designed siRNA Set A
  • HY-139032
    CM121
    		Inhibitor
    CM121 is an active site-directed reversible ALDH1A2 inhibitor (IC50=0.54 μM；Kd=1.1 μM) with a variety of hydrophobic interactions.
    CM121
  • HY-N1177
    Taraxerone
    		Inhibitor 99.95%
    Taraxerone is isolated from Sedum sarmentosum. Taraxerone enhances effects on alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities with EC50 values of 512.42 and 500.16 μM, respectively.
    Taraxerone
  • HY-157567
    FSI-TN42
    		Inhibitor 98.05%
    FSI-TN42 (N42) is a selective, orally active and irreversible ALDH1A1 inhibitor with an IC50 of 23 nM. FSI-TN42 shows 800-fold more potent against ALDH1A1 than ALDH1A2 (IC50
    FSI-TN42
  • HY-122373
    Coprine
    		Inhibitor
    Coprine is an orally active disulfiram (HY-B0240)-like component and an inhibitor of aldehyde dehydrogenase. Coprine is isolated from Coprinus atranentarius. Coprine inhibits low Km aldehyde dehydrogenase in rat liver and increases blood acetaldehyde levels during in vivo ethanol metabolism. Coprine does not inhibit semi-purified low Km aldehyde dehydrogenase from rat liver in vitro. Coprine can be used in studies related to alcoholism.
    Coprine
  • HY-168985
    Mirivadelgat
    		Activator
    Mirivadelgat is an activator of aldehyde dehydrogenase 2 activator. Mirivadelgat is promising for research of interstitial lung disease-pulmonary hypertension and cancers.
    Mirivadelgat
Cat. No. Product Name / Synonyms Application Reactivity
Aldehyde Dehydrogenase (ALDH) Isoform Comparison

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