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

Aldehyde Dehydrogenase (ALDH)

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) Related Products (41):

Cat. No. Product Name Effect Purity
  • HY-113466
    4-Hydroxynonenal Inhibitor
    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[1][2][3].
  • HY-138097
    α-NETA Antagonist
    α-NETA is a potent and noncompetitive choline acetyltransferase (ChA) inhibitor with an IC50 of 9 μM. α-NETA is a potent ALDH1A1 (IC50=0.04 µM) and chemokine-like receptor-1 (CMKLR1) antagonist. α-NETA weakly inhibits cholinesterase (ChE; IC50=84 µM) and acetylcholinesterase (AChE; IC50=300 µM). α-NETA has anti-cancer activity[1][2].
  • HY-B0240
    Disulfiram Inhibitor
    Disulfiram (Tetraethylthiuram disulfide) is a specific inhibitor of aldehyde-dehydrogenase (ALDH1), used for the treatment of chronic alcoholism by producing an acute sensitivity to alcohol. Disulfiram inhibits gasdermin D (GSDMD) pore formation in liposomes and inflammasome-mediated pyroptosis and IL-1β secretion in human and mouse cells. Disulfiram, a copper ion carrier, with Cu2+ increases intracellular ROS levels and induces cuproptosis[1][2][3][4][5][6].
  • HY-N0018
    Daidzin Inhibitor 99.77%
    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[1].
  • HY-18936
    Alda-1 Agonist 99.99%
    Alda-1 is a potent and selective ALDH2 agonist, which activates wild-type ALDH2 and restores near wild-type activity to ALDH2*2.
  • HY-157567
    FSI-TN42 Inhibitor 98.05%
    ALDH1A1/2-IN-1 is an ALDH1A1 and ALDH1A2 inhibitor that can be used for preventing spermatogenesis[1].
  • HY-157872
    ALDH1A1-IN-4 Inhibitor
    ALDH1A1-IN-4 (compound A1) is a potent inhibitor of aldehyde dehydrogenase (ALDH) A1, with IC50 value of 0.32 μM. ALDH1A1-IN-4 plays an important role in cancer research[1].
  • HY-158026
    ALDH1A1-IN-5 Inhibitor
    ALDH1A1-IN-5 (compound 25) is a potent aldehyde dehydrogenase 1A1 (ALDH1A1) inhibitor with EC50 value of 83, 45, 43 µM for ALDH1A1, ALDH1A2, ALDH1A3, respectively. ALDH1A1-IN-5 has the potential for the research of high-grade serous ovarian cancer (HGSOC)[1].
  • HY-126003
    ALDH1A1-IN-2 Inhibitor 99.48%
    ALDH1A1-IN-2 is a potent inhibitor of aldehyde dehydrogenase 1a1 (aldh1a1). Aldehyde dehydrogenases (ALDH) constitute a family of enzymes that play a critical role in oxidizing various cytotoxic xenogenic and biogenic aldehydes. ALDH1A1-IN-2 has the potential for the research of cancer, inflammation, or obesity (extracted from patent WO2019089626A1, compound 295)[1].
  • HY-107030
    Nitrefazole Inhibitor
    Nitrefazole is a 4-nitroimidazole derivative with strong and long lasting inhibition of aldehyde dehydrogenase (ALDH), an enzyme involved in the metabolism of alcohol.
  • HY-148466
    IGUANA-1 Inhibitor 98.88%
    IGUANA-1 is a potent inhibitor of ALDH1B1, which is a mitochondrial enzyme that promotes colorectal and pancreatic cancer. IGUANA-1 has significant inhibition against cancer cells[1].
  • HY-B0364A
    Dyclonine hydrochloride Inhibitor 99.86%
    Dyclonine (Dyclocaine) hydrochloride is an orally effective ALDH covalent inhibitor (crosses blood-brain barrier), with an IC50 of 35 µM for ALDH2 and 76 µM for ALDH3A1. Dyclonine hydrochloride has sensitizing activities for targeted cancer cells and antibacterial. Dyclonine hydrochloride is also a local anesthetic that blocks the transmission of various nerve impulses or stimuli and inhibits the sensation of touch and pain[1][2][3].
  • HY-P2947
    ALDH
    ALDH (Aldehyde dehydrogenase (NAD(P))) catalyzes the oxidation of aldehydes into their corresponding carboxylic acids with the concomitant reduction of the cofactor NAD(P) into NAD(P)H, is often used in biochemical studies. The ALDHs are one of many enzyme systems the body utilizes to alleviate aldehyde stress[1].
  • HY-156443
    YG1702 Inhibitor 99.21%
    YG1702 is a potent ALDH18A1-specific inhibitor. YG1702 attenuates the growth of MYCN-amplified NB and down-regulates MYCN. YG1702 physically interacts with ALDH18A1 with a high affinity and might potentially affect its enzymatic activity[1].
  • HY-W017186
    ALDH1A3-IN-3 Inhibitor
    ALDH1A3-IN-3 (compound 16) is a potent inhibitor of ALDH1A3, with an IC50 of 0.26 μM. ALDH1A3-IN-3 is also a good ALDH3A1 substrate. ALDH1A3-IN-3 can be used for the research of prostate cancer[1].
  • HY-112278
    NCT-506 Inhibitor 99.44%
    NCT-506 is an orally bioavailable aldehyde dehydrogenase 1A1 (ALDH1A1) inhibitors with an IC50 of 7 nM[1].
  • HY-113466S
    4-Hydroxynonenal-d3 Inhibitor
    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[1][2][3].
  • HY-112277
    NCT-505 Inhibitor 98.41%
    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).
  • HY-144670
    ALDH3A1-IN-1 Inhibitor
    ALDH3A1-IN-1 (Compound 18) is a potent inhibitor of ALDH3A1 with an IC50 of 1.61 μM. ALDH3A1-IN-1 is more potent than DEAB against patient-derived primary prostate tumor epithelial cells, as single agents or in combination research with docetaxel[1].
  • HY-76006
    3-Hydroxybenzaldehyde
    3-Hydroxybenzaldehyde is a precursor compound for phenolic compounds, such as Protocatechualdehyde (HY-N0295). 3-Hydroxybenzaldehyde is a substrate of aldehyde dehydrogenase (ALDH) in rats and humans (ALDH2). 3-Hydroxybenzaldehyde has vasculoprotective effects in vitro and in vivo[1].