2. Signaling Pathways
  3. Immunology/Inflammation
  4. COX

COX

Cyclooxygenase

COX

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Cyclooxygenase (COX), officially known as prostaglandin-endoperoxide synthase (PTGS), is an enzyme that is responsible for formation of important biological mediators called prostanoids, including prostaglandins, prostacyclin and thromboxane. Pharmacological inhibition of COX can provide relief from the symptoms of inflammation and pain. Drugs, like Aspirin, that inhibit cyclooxygenase activity have been available to the public for about 100 years. Two cyclooxygenase isoforms have been identified and are referred to as COX-1 and COX-2. Under many circumstances the COX-1 enzyme is produced constitutively (i.e., gastric mucosa) whereas COX-2 is inducible (i.e., sites of inflammation). Non-steroidal anti-inflammatory drugs (NSAID), such as aspirin and ibuprofen, exert their effects through inhibition of COX. The main COX inhibitors are the non-steroidal anti-inflammatory drugs (NSAIDs).

COX Isoform Specific Products:

COX Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N2459
    Peonidin chloride
    		Inhibitor 98.70%
    Peonidin chloride is an O-methylated anthocyanidin that functions as a primary plant pigment, endowing purplish-red hues to flowers such as the peony, from which it takes its name, as well as berries and vegetables. Peonidin chloride exhibits chemopreventive, as well as anti-inflammatory activities on cancer cells in vitro, blocking COX-2 expression and transformation in JB6 P+ mouse epidermal cells.
    Peonidin chloride
  • HY-N0001R
    (-)-Epicatechin (Standard)
    		Inhibitor
    (-)-Epicatechin (Standard) is the analytical standard of (-)-Epicatechin. This product is intended for research and analytical applications. (-)-Epicatechin inhibits cyclooxygenase-1 (COX-1) with an IC50 of 3.2 μM. (-)-Epicatechin inhibits the IL-1β-induced expression of iNOS by blocking the nuclear localization of the p65 subunit of NF-κB.
    (-)-Epicatechin (Standard)
  • HY-B1054
    Famprofazone
    		Inhibitor 98.38%
    Famprofazone is a non-steroidal anti-inflammatory drug (NSAID) that belongs to the pyrazolone series, and it has analgesic, anti-inflammatory, and antipyretic effects.
    Famprofazone
  • HY-131258
    Ibuprofen impurity 1
    		Inhibitor 98.0%
    Ibuprofen impurity 1 is an Ibuprofen impurity. Ibuprofen is an anti-inflammatory inhibitor targeting COX-1 and COX-2 with IC50s of 13 μM and 370 μM, respectively.
    Ibuprofen impurity 1
  • HY-17357S
    Nepafenac-d5
    		Inhibitor 98.84%
    Nepafenac-d5 (AHR-9434-d5; AL-6515-d5) is the deuterium labeled Nepafenac (HY-17357). Nepafenac, a nonsteroidal anti-inflammatory agent, is a topically administered COX-2 inhibitor with an IC50 of 0.12 μM. Nepafenac exhibits only weak COX-1 inhibitory activity (IC50 = 64.3 μM). Nepafenac possesses unique prodrug properties, which enable it to rapidly convert into the active metabolite Amfenac (HY-17479) in the ocular tissues, thereby achieving high concentrations in the retina and choroid. Nepafenac reduces inflammation and pain by inhibiting the activity of cyclooxygenase (COX) enzymes and thereby decreasing the production of prostaglandin PGE₂. Nepafenac can delay the metastasis of uveal melanoma (UM) in rabbit eyes. Nepafenac is mainly used for pain management and inflammation control after ophthalmic surgeries.
    Nepafenac-d<sub>5</sub>
  • HY-N7064
    Iminostilbene
    		Inhibitor 99.34%
    Iminostilbene is a chemical precursor of carbamazepine. Additionally, Iminostilbene is an orally active inhibitor of PKM2 (Pyruvate Kinase M2) and COX2 (Cyclooxygenase-2). Iminostilbene exerts its effects by inhibiting PKM2 and its interaction with HIF-1α and STAT3, reducing COX2 and iNOS expression, and decreasing LPS-induced release of IL-1β, IL-6, TNF-α, and MCP-1, thereby suppressing macrophage-mediated inflammatory responses and improving myocardial ischemia/reperfusion (MI/R) injury. Iminostilbene holds promise for research in inflammation regulation, cardiovascular diseases (such as MI/R injury), and macrophage-mediated immune-related diseases.
    Iminostilbene
  • HY-113445
    Thromboxane B3
    Thromboxane B3 is a prostaglandin analog derived from arachidonic acid (AA) in the cyclooxygenase (COX) metabolic pathway. Thromboxane B3 is generated from arachidonic acid (AA) in platelets and vascular endothelial cells through the catalysis of cyclooxygenase (COX) and thromboxane synthase (TXS). Thromboxane B3 has been reported to be formed by human platelets upon ingestion of eicosapentaenoic acid (C20: 5ω3).
    Thromboxane B3
  • HY-106579
    Tiaprofenic acid
    		Inhibitor 99.93%
    Tiaprofenic acid is an orally active nonsteroidal anti-inflammatory agent (NSAID) with anti-inflammatory and analgesic potency. Tiaprofenic acid inhibits prostaglandin synthesis by suppressing cyclo-oxygenase (COX). Tiaprofenic acid can be used in the treatment of rheumatic diseases.
    Tiaprofenic acid
  • HY-W012817
    Methylhydroquinone
    		Inhibitor 99.91%
    Methylhydroquinone is an orally active COX inhibitor with IC50s of 480.7 μM and 52.2 μM for ovine COX-1 and human recombinant COX-2, respectively. Methylhydroquinone has potential DNA damaging effects: 1) inhibiting COX-1 to reduce prostaglandin synthesis and exert anti-inflammatory activity; 2) inducing DNA single-strand breaks. Methylhydroquinone exerts its effects by competitively binding to the active sites of COX-1 (such as Tyr385, Met522) and non-covalent interactions.
    Methylhydroquinone
  • HY-14654S1
    Aspirin-d4
    		Inhibitor
    Aspirin-d4 is the deuterium labeled Aspirin (HY-14654). Aspirin (Acetylsalicylic acid) is an orally active, potent and irreversible inhibitor of cyclooxygenase COX-1 and COX-2, with IC50 values of 5 and 210 μg/mL, respectively. Aspirin induces apoptosis. Aspirin inhibits the activation of NF-κB. Aspirin also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis.
    Aspirin-d<sub>4</sub>
  • HY-17361
    Etofenamate
    		Inhibitor 98.35%
    Etofenamate, a non-steroid anti-inflammatory agent (NSAID) and a non-selective COX inhibitor, possesses analgesic, anti-rheumatic, antipyretic and anti-inflammatory properties. Etofenamate is used in the research for osteoarthritis, arthritis and other inflammatory diseases.
    Etofenamate
  • HY-N6079
    Timosaponin A1
    		Inhibitor 99.70%
    Timosaponin A1, a natural steroidal saponin, is a 5-lipoxygenase (5-LO), COX-2, and dipeptidyl peptidase 4 (DPP-4) inhibitor with IC50s of 3.29 µM, 36.43 µM, and 33.25 µM, respectively.
    Timosaponin A1
  • HY-N7635
    Oleanolic acid 28-O-β-D-glucopyranoside
    		Inhibitor 99.42%
    Oleanolic acid 28-O-β-D-glucopyranoside (β-D-Glucopyranosyl oleanolate) is an orally active pentacyclic triterpenoid compound. Oleanolic acid 28-O-β-D-glucopyranoside has anti-inflammatory effects. In ulcerative colitis models, Oleanolic acid 28-O-β-D-glucopyranoside can inhibit the inflammatory response, enhance the intestinal epithelial barrier function, and modulate the gut microbiota. Its mechanism of action is related to the PI3K-AKT and MAPK signaling pathways. Oleanolic acid 28-O-β-D-glucopyranoside can be used in the research of diseases such as colitis.
    Oleanolic acid 28-O-β-D-glucopyranoside
  • HY-15030R
    Naproxen (Standard)
    		Inhibitor
    Naproxen (Standard) is the analytical standard of Naproxen. This product is intended for research and analytical applications. Naproxen is a COX-1 and COX-2 inhibitor with IC50s of 8.72 and 5.15 μM, respectively in cell assay.
    Naproxen (Standard)
  • HY-B0714
    Dexketoprofen (trometamol)
    		Inhibitor 99.73%
    Dexketoprofen trometamol (Dexketoprofen tromethamine salt) is an orally active non-selective COX inhibitor. Dexketoprofen trometamol has a pain-relieving effect, anti-inflammatory effect and anti-cancer effect.
    Dexketoprofen (trometamol)
  • HY-W087194
    p-Ethylhydratropic acid
    		Control 99.60%
    p-Ethylhydratropic acid (compound 5b) is the impurity of Ibuprofen (HY-78131). Ibuprofen is a potent, orally active, selective COX-1 inhibitor.
    p-Ethylhydratropic acid
  • HY-B0261R
    Meloxicam (Standard)
    		Inhibitor
    Meloxicam (Standard) is the analytical standard of Meloxicam. This product is intended for research and analytical applications. Meloxicam is a non-steroidal antiinflammatory agent, inhibits COX activity, with IC50s of 0.49 μM and 36.6 μM for COX-2 and COX-1, respectively.
    Meloxicam (Standard)
  • HY-B2121
    6-Methoxy-2-naphthoic acid
    		Inhibitor 99.73%
    6-Methoxy-2-naphthoic acid (6-MNA) is the active metabolite of Nabumetone (HY-B0559). 6-Methoxy-2-naphthoic acid is also an inhibitor of COX-1 and COX-2. 6-Methoxy-2-naphthoic acid can inhibit the synthesis of gastric mucosal prostaglandin E2. 6-Methoxy-2-naphthoic acid can be used in the research of inflammation and pain-related diseases. In addition, 6-Methoxy-2-naphthoic acid is an impurity in Naproxen (HY-15030) and can also be used in the synthesis of other active compounds.
    6-Methoxy-2-naphthoic acid
  • HY-B0568R
    Deferiprone (Standard)
    		Inhibitor
    Deferiprone (Standard) is the analytical standard of Deferiprone. This product is intended for research and analytical applications. Deferiprone is a potent, orally active, brain-penetrant, cell-penetrant, skin-permeable, free iron chelating agent. Deferiprone inhibits the proliferation and migration, and stimulates apoptosis in tumor cell. Deferiprone has antianemic, neuroprotective, anti-inflammatory, antioxidant, and antidotal activity. Deferiprone can be used in cancer, cardiovascular disease, infection, inflammation, and neurological disease study.
    Deferiprone (Standard)
  • HY-N10303
    Withangulatin A
    		Inhibitor 99.76%
    Withangulatin A is the inhibitor for COX-2. Withangulatin A inhibits MAPK, NF-κB, Akt/mTOR/p70S6K pathway, exhibits antitumor, anti-inflammatory and trypanocidal activities.
    Withangulatin A
Cat. No. Product Name / Synonyms Application Reactivity
COX Isoform Comparison

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