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

COX

Cyclooxygenase

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).

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N1181R
    Tamarixetin (Standard)
    Inhibitor
    Tamarixetin (Standard) is the analytical standard of Tamarixetin. This product is intended for research and analytical applications. Tamarixetin (4'-O-Methyl Quercetin) is an orally active natural flavonoid derivative of quercetin and caseinolytic protease p (ClpP) inhibitor with anti-inflammatory, antioxidant and antitumor effects. Tamarixetin inhibits the hydrolytic activity of ClpP to the fluorescent substrate Suc-LY-AMC with an IC50 of 49.73 μM, which can be used for the study of Staphylococcus aureus infection. Tamarixetin inhibits tumor cell growth, induces apoptosis, and cell cycle arrest. Tamarixetin prevents cardiac hypertrophy by inhibiting the NFAT and AKT pathways.
    Tamarixetin (Standard)
  • HY-B0363S1
    Nimesulide-13C6
    Inhibitor
    Nimesulide-13C6 (R805-13C6) is 13C labeled Nimesulide. Nimesulide is a selective COX-2 inhibitor, with IC50s of 70 nM-70 μM in a time-dependent manner, but it shows no effect on COX-1 (IC50 >100 μM). Nimesulide has potent anti-inflammatory, analgesic and antipyretic properties.
    Nimesulide-<sup>13</sup>C<sub>6</sub>
  • HY-100516R
    Cimicoxib (Standard)
    Inhibitor
    Cimicoxib (Standard) is the analytical standard of Cimicoxib. This product is intended for research and analytical applications. Cimicoxib (UR-8880) is an orally active, blood-brain barrier-permeable COX-2 inhibitor that also exerts targeted inhibition on CYP2D15. It has an IC50 of 66 nM against hCOX-2, an IC50 of 1.6 μM against canine CYP2D15, and an IC50 of 0.056 μM against feline CYP2D15. By inhibiting the COX-2 pathway to reduce the production of thromboxane B2 and prostaglandin E2, Cimicoxib exerts antipyretic, anti-inflammatory and analgesic effects. Cimicoxib is metabolized by CYP2D15 to form demethyl-cimicoxib, undergoes glucuronidation via UDP-glucuronosyltransferases, and exhibits biphasic elimination kinetics in beagle dogs. Cimicoxib is widely used in studies of inflammatory diseases, osteoarthritis, and perioperative pain associated with orthopedic or soft tissue surgeries.
    Cimicoxib (Standard)
  • HY-N5083R
    Saponarin (Standard)
    Inhibitor
    Saponarin (Standard) is the analytical standard of Saponarin (HY-N5083). This product is intended for research and analytical applications. Saponarin is an orally active flavonoid compound. Saponarin can be isolated from Gypsophila trichotoma. Saponarin inhibits ERK/p38, NF-κB and MAPK phosphorylation and activates AMPK. Saponarin reduces IL-1β and COX-2. Saponarin has antioxidant, anti-inflammatory, hepatoprotective, hypoglycemic and hypotensive effects. Saponarin improves sleep disorders.
    Saponarin (Standard)
  • HY-173485
    SARS-CoV-2 Mpro-IN-41
    Inhibitor
    SARS-CoV-2 Mpro-IN-41 (Compound 7e) is an orally active inhibitor of COX-2 and SARS-CoV-2 M pro (IC50 values are 9.66 μM and 13.24 μM, respectively). SARS-CoV-2 Mpro-IN-41 also has a certain inhibitory activity against COX-1 (IC50: 46.11 μM). SARS-CoV-2 Mpro-IN-41 can significantly inhibit the expression of inflammatory-related cytokines (such as TNF-α, IL-6, IL-1β) and exert anti-inflammatory effects. SARS-CoV-2 Mpro-IN-41 exerts anti-inflammatory and antiviral effects by selectively inhibiting COX-2 and SARS-CoV-2 M pro. SARS-CoV-2 Mpro-IN-41 can be used for anti-inflammatory and anti-coronavirus research.
    SARS-CoV-2 Mpro-IN-41
  • HY-119469
    Aceclofenac ethyl ester
    Control 99.40%
    Aceclofenac ethyl ester is an impurity of Aceclofenac (HY-B0634).
    Aceclofenac ethyl ester
  • HY-N1312R
    Sinapaldehyde (Standard)
    Inhibitor
    Sinapaldehyde is a methoxyphenol and a selective COX-2 inhibitor (IC50: 47.8 µM) that can be extracted from various plants. Sinapaldehyde has antibacterial, anti-inflammatory, and antioxidant activities. Sinapaldehyde can scavenge DPPH free radicals (IC50: 172 μM). Sinapaldehyde is active against both Gram-negative and Gram-positive bacteria.
    Sinapaldehyde (Standard)
  • HY-108297R
    Piketoprofen (Standard)
    Inhibitor
    Piketoprofen (Standard) is the analytical standard of Piketoprofen. This product is intended for research and analytical applications. Piketoprofen is a non-steroidal anti-inflammatory reagent that can be used as a cream preparation for the study of soft tissue rheumatism.
    Piketoprofen (Standard)
  • HY-101840AR
    EIPA hydrochloride (Standard)
    Inhibitor
    EIPA (hydrochloride) (Standard) is the analytical standard of EIPA (hydrochloride). This product is intended for research and analytical applications. EIPA (L593754) hydrochloride is an orally active TRPP3 channel inhibitor with an IC50 of 10.5 μM. EIPA hydrochloride also enhances autophagy by inhibiting Na+/H+-exchanger 3 (NHE3). EIPA hydrochloride inhibits macropinocytosis as well. EIPA hydrochloride can be used in the research of inflammation and cancers, such as gastric cancer, colon carcinoma, pancreatic carcinoma.
    EIPA hydrochloride (Standard)
  • HY-N0932
    Catechin hydrate
    Inhibitor
    Catechin hydrate inhibits cyclooxygenase-1 (COX-1) with an IC50 of 1.4 μM.
    Catechin hydrate
  • HY-W706470
    (-)-Bornyl ferulate
    Inhibitor
    (-)-Bornyl ferulate is a 5-lipoxygenase and COX inhibitor with IC50s of 10.4 μM and 12.0 μM, respectively.
    (-)-Bornyl ferulate
  • HY-15036AR
    Diclofenac diethylamine (Standard)
    Inhibitor
    Diclofenac (diethylamine) (Standard) is the analytical standard of Diclofenac (diethylamine). This product is intended for research and analytical applications. Diclofenac diethylamine is a potent and nonselective anti-inflammatory agent, acts as a COX inhibitor, with IC50s of 4 and 1.3 nM for human COX-1 and COX-2 in CHO cells, and 5.1 and 0.84 μM for ovine COX-1 and COX-2, respectively. Diclofenac diethylamine induces apoptosis of neural stem cells (NSCs) via the activation of the caspase cascade.
    Diclofenac diethylamine (Standard)
  • HY-B1888AR
    Bromfenac sodium (Standard)
    Inhibitor
    Bromfenac (sodium) (Standard) is the analytical standard of Bromfenac (sodium). This product is intended for research and analytical applications. Bromfenac sodium is a potent and orally active inhibitor of COX, with IC50s of 5.56 and 7.45 nM for COX-1 and COX-2, respectively. Bromfenac sodium can be used in ocular inflammation research.
    Bromfenac sodium (Standard)
  • HY-B1138S
    Fenbufen-d9
    Inhibitor
    Fenbufen-d9 (CL-82204-d9) is the deuterium labeled Fenbufen. Fenbufen (CL-82204) is an orally active non-steroidal anti-inflammatory drug (NSAID), with antipyretic effects. Fenbufen has potent activity in a variety of animal model, including carageenin edema, UV erythema and adjuvant arthritis. Fenbufen has inhibitory activities against COX-1 and COX-2 with IC50s of 3.9 μM and 8.1 μM, respectively. Fenbufen is a caspases (caspase-1, 3, 4, 5, 9) inhibitor.
    Fenbufen-d<sub>9</sub>
  • HY-135731R
    4-Methylamino antipyrine (Standard)
    Inhibitor
    4-Methylamino antipyrine (Standard) is the analytical standard of 4-Methylamino antipyrine. This product is intended for research and analytical applications. 4-Methylamino antipyrine is an active metabolite of Metamizole. Metamizole is a pyrazolone non-steroidal anti-inflammatory drug (NSAID) and inhibits COX. Metamizole is an nonopioid analgesic agent and can be used for pain and fever. 4-Methylamino antipyrine has analgesic, antipyretic, and relatively weak antiinflammatory properties.
    4-Methylamino antipyrine (Standard)
  • HY-N15347
    Talaromyketide B
    Inhibitor
    Talaromyketide B is a polyketide compound with anti-inflammatory activity, discovered in the soil bacterium Talaromyces sp. KYS-41. Talaromyketide B inhibits the activation of the NF-κB and MAPK signaling pathways and dose-dependently suppresses pro-inflammatory cytokines, such as IL-1β, IL-6, IL-10, and TNF-α, as well as the transcriptional activity of inflammatory mediators, including iNOS and COX-2. Talaromyketide B holds potential for research in the fields of immunity and inflammatory diseases.
    Talaromyketide B
  • HY-17372R
    Rofecoxib (Standard)
    Inhibitor
    Rofecoxib (Standard) is the analytical standard of Rofecoxib. This product is intended for research and analytical applications. Rofecoxib is a potent, specific and orally active COX-2 inhibitor, with IC50s of 26 and 18 nM for human COX-2 in human osteosarcoma cells and Chinese hamster ovary cells, with a 1000-fold selectivity for COX-2 over human COX-1 (IC50 > 50 μM in U937 cells and > 15 μM in Chinese hamster ovary cells).
    Rofecoxib (Standard)
  • HY-12383R
    Pelubiprofen (Standard)
    Inhibitor
    Pelubiprofen (Standard) is the analytical standard of Pelubiprofen. This product is intended for research and analytical applications. Pelubiprofen is an orally active anti-inflammatory agent that inhibits COX enzyme activity (with IC50 values of 10.66 and 2.88 μM for COX-1 and COX-2, respectively). Pelubiprofen has significant anti-inflammatory and analgesic effects.
    Pelubiprofen (Standard)
  • HY-18342S1
    Diflunisal-13C6
    Inhibitor
    Diflunisal-13C6 (MK-647-13C6) is 13C labeled Diflunisal. Diflunisal (MK-647) is a salicylate derivative with nonsteroidal anti-inflammatory and uricosuric properties, which is used alone as an analgesic and in rheumatoid arthritis patients. The mechanism of action of diflunisal is as a Cyclooxygenase (COX) Inhibitor.
    Diflunisal-<sup>13</sup>C<sub>6</sub>
  • HY-14397S2
    Indometacin-d7
    Inhibitor
    Indometacin-d7 is deuterated labeled Indomethacin (HY-14397). Indomethacin (Indometacin) is a potent, orally active COX1/2 inhibitor with IC50 values of 18 nM and 26 nM for COX-1 and COX-2, respectively. Indomethacin has anticancer activity and anti-infective activity. Indomethacin can be used for cancer, inflammation and viral infection research.
    Indometacin-d<sub>7</sub>
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