1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Lipoxygenase


Lipoxygenases (LOXs) are a family of enzymes that are responsible for the metabolism of arachidonic and docosahexaenoic acid and for the formation of several eicosanoids and docosanoids, including leukotrienes, lipoxins and neuroprotectins. Depending on cells' redox state and other milieu conditions, these enzymes are engaged in oxidative stress and cell death mechanisms or in cell protection. Lipoxygenases are lipid peroxidizing enzymes, implicated in the pathogenesis of inflammatory and hyperproliferative diseases, which represent potential targets for pharmacological intervention.

Lipoxygenases are classified on the basis of site of arachidonate oxygenation into 5-, 8-, 9-, 11-, 12- and 15-LOX. The prominent animal LOXs are 5-LOX, 8-LOX, 12-LOX and 15-LOX, while the plant LOXs are mostly 5-LOX and 15-LOX. Among these, 5-LOX is the most predominant isoform associated with the formation of 5-hydroperoxyeicosatetraenoic acid (5-HpETE) and other bioactive lipid mediators.

Lipoxygenase Isoform Specific Products:

Cat. No. Product Name Effect Purity
  • HY-13419
    Inhibitor 98.17%
    U-73122 is a phospholipase C (PLC) and 5-LO (5-lipoxygenase) inhibitor with an IC50of 1-2.1 µM for PLC.
  • HY-N0551
    Inhibitor 99.91%
    Wedelolactone suppresses LPS-induced caspase-11 expression by directly inhibits the IKK Complex. Wedelolactone also inhibits 5-lipoxygenase (5-Lox) with an IC50 of 2.5 μM. Wedelolactone induces caspase-dependent apoptosis in prostate cancer cells via downregulation of PKCε without inhibiting Akt. Wedelolactone can extract from Wedelia chinensis and Eclipta alba, and it can be used for the research of cancer.
  • HY-14164
    Inhibitor 99.58%
    Zileuton is a potent and selective inhibitor of 5-lipoxygenase with antiasthmatic properties.
  • HY-N0198
    Nordihydroguaiaretic acid
    Inhibitor 99.88%
    Nordihydroguaiaretic acid is a 5-lipoxygenase (5LOX) (IC50=8 μM) and tyrosine kinase inhibitor.
  • HY-12341
    Inhibitor 98.42%
    ML355 is a potent and selective inhibitor of 12-Lipoxygenase (12-LOX) with an IC50 of 0.34 μM, shows excellent selectivity over related lipoxygenases and cyclooxygenases, and possesses favorable ADME properties.
  • HY-W066890
    Inhibitor 99.51%
    4-Nitrocatechol is a potent lipoxygenase inhibitor.
  • HY-10447
    Inhibitor 99.76%
    Terameprocol is a synthetic derivative of Nordihydroguaiaretic acid and a non-selective lipoxygenase inhibitor. Terameprocol has antiviral and antitumor effects.
  • HY-109500
    Masoprocol (meso-Nordihydroguaiaretic acid) is a potent and orally active lipoxygenase inhibitor. Masoprocol shows antihyperglycemic activity. Masoprocol decreases the glucose concentration and hepatic triglyceride in vivo. Masoprocol has the potential for the research of type II diabetes.
  • HY-N0172
    Caffeic acid
    Inhibitor 98.71%
    Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).
  • HY-19807
    Inhibitor 99.89%
    Indirubin-3'-monoxime is a potent GSK-3β inhibitor, and weakly inhibits 5-Lipoxygenase, with IC50s of 22 nM and 7.8-10 µM, respectively; Indirubin-3'-monoxime also shows inhibitory activities against CDK5/p25 and CDK1/cyclin B, with IC50s of 100 and 180 nM.
  • HY-N0232
    Inhibitor 99.90%
    Psoralidin is a dual inhibitor of COX-2 and 5-LOX, regulates ionizing radiation (IR)-induced pulmonary inflammation.Anti-cancer, anti-bacterial, and anti-inflammatory properties. Psoralidin significantly downregulates NOTCH1 signaling. Psoralidin also greatly induces ROS generation.
  • HY-N3032
    Inhibitor 99.79%
    Xanthatin is isolated from Xanthium strumarium leaves. Xanthatin exhibits strong antitumor activities against a variety of cancer cells through apoptosis persuasion and shows anti-inflammatory activities by inhibiting PGE2 synthesis and 5-lipoxygenase activity. Xanthatin is a potent and orally active inhibitor of VEGFR2 kinase activity with an IC50 of 3.8 μM and prominently blocks the phosphorylation of VEGFR2 at Tyr951 site. Xanthatin inhibits angiogenesis and has the potential for the investigation of breast cancer.
  • HY-12886
    Inhibitor 99.10%
    Docebenone (AA 861) is a potent, selective and orally active 5-LO (5-lipoxygenase) inhibitor.
  • HY-B1452
    Inhibitor ≥99.0%
    Licofelone (ML-3000) is a dual COX/5-lipoxygenase (5-LOX) inhibitor (IC50=0.21/0.18 μM, respectively) for the treatment of osteoarthritis. Licofelone exerts anti-inflammatory and anti-proliferative effects. Licofelone induces apoptosis, and decreases the production of proinflammatory leukotrienes and prostaglandins.
  • HY-N0493
    Inhibitor 99.47%
    Pectolinarigenin is a dual inhibitor of COX-2/5-LOX. Anti-inflammatory activity. Pectolinarigenin has potent inhibitory activities on melanogenesis.
  • HY-111310
    Inhibitor 98.19%
    ML351 is a potent and highly specific 15-LOX-1 inhibitor with an IC50 of 200 nM. ML351 shows excellent selectivity (>250-fold) versus the related isozymes, 5-LOX, platelet 12-LOX, 15-LOX-2, ovine COX-1, and human COX-2. ML351 prevents dysglycemia and reduces β-cell oxidative stress in nonobese diabetic mouse model of T1D.
  • HY-N2176
    Inhibitor 99.11%
    S-(+)-Marmesin is a natural coumarin, exhibiting COX-2/5-LOX dual inhibitory activity.
  • HY-117048
    Inhibitor 99.77%
    PF-4191834 (PF-04191834) is an orally active, noniron chelating, and non-redox inhibitor of the 5-Lipoxygenase (5-LOX) (IC50=229 nM), displays ~300-fold selectivity for 5-LOX over 12-LOX and 15-LOX, shows no activity toward the cyclooxygenase enzymes, and is effective in inflammation and pain.
  • HY-W012399
    Modulator ≥98.0%
    2,5-Di-tert-butylhydroquinone (DTBHQ), the indirect food additive, regulates the activity of 5-lipoxygenase as well as the activity of COX-2 (IC50=1.8 and 14.1 μM for 5-LO and COX-2, respectively) .
  • HY-118480
    Inhibitor 99.69%
    4-MMPB is a selective inhibitor of 15-lipoxygenase, with an IC50 of 18 μM. 4-MMPB has IC50s of 19.5 μM and 19.1 μM for soybean 15-lipoxygenase (SLO) and human 15-lipoxygenase-1 (15-LOX-1), respectively. 4-MMPB has potential for the research of prostate cancer.

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