Date published: 2026-2-1

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4′-Hydroxy Diclofenac (CAS 64118-84-9)

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Alternate Names:
2-[(2,6-dichloro-4′-hydroxyphenyl)amino]-benzeneacetic acid
Application:
4′-Hydroxy Diclofenac is a Cox-2 inhibitor and an active CYP2C9 metabolite of the NSAID diclofenac.
CAS Number:
64118-84-9
Molecular Weight:
312.15
Molecular Formula:
C14H11Cl2NO3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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4′-Hydroxy Diclofenac is a major metabolite of diclofenac, emerging through the metabolic pathways involving cytochrome P450 enzymes, particularly CYP2C9. This compound plays a role in the research landscape, particularly in the study of drug metabolism and the elucidation of mechanisms related to the biotransformation of pharmaceutical compounds. Its formation is indicative of the phase I metabolic processes that xenobiotics undergo, highlighting the significance of oxidative reactions in altering the molecular structure and properties of substances to enhance their excretion. In research applications, 4′-Hydroxy Diclofenac serves as a model compound to investigate the kinetics of metabolic reactions, the impact of genetic polymorphisms on drug metabolism, and the potential for drug-drug interactions mediated by the cytochrome P450 system. This metabolite′s presence and concentration in various models can provide insight into the efficiency of drug metabolism and the potential for accumulation of parent compounds or their metabolites.


4′-Hydroxy Diclofenac (CAS 64118-84-9) References

  1. Hydrolytic activity is essential for aceclofenac to inhibit cyclooxygenase in rheumatoid synovial cells.  |  Yamazaki, R., et al. 1999. J Pharmacol Exp Ther. 289: 676-81. PMID: 10215639
  2. Diclofenac and its derivatives as tools for studying human cytochromes P450 active sites: particular efficiency and regioselectivity of P450 2Cs.  |  Mancy, A., et al. 1999. Biochemistry. 38: 14264-70. PMID: 10572000
  3. Efficient high performance liquid chromatograph/ultraviolet method for determination of diclofenac and 4'-hydroxydiclofenac in rat serum.  |  Kaphalia, L., et al. 2006. J Chromatogr B Analyt Technol Biomed Life Sci. 830: 231-7. PMID: 16301007
  4. Isolation and characterization of a new human urinary metabolite of diclofenac applying LC-NMR-MS and high-resolution mass analyses.  |  Stülten, D., et al. 2008. J Pharm Biomed Anal. 47: 371-6. PMID: 18314292
  5. Occurrence of diclofenac and selected metabolites in sewage effluents.  |  Stülten, D., et al. 2008. Sci Total Environ. 405: 310-6. PMID: 18640705
  6. Liquid chromatography-tandem mass spectrometric assay for diclofenac and three primary metabolites in mouse plasma.  |  Sparidans, RW., et al. 2008. J Chromatogr B Analyt Technol Biomed Life Sci. 872: 77-82. PMID: 18674973
  7. First evidence for occurrence of hydroxylated human metabolites of diclofenac and aceclofenac in wastewater using QqLIT-MS and QqTOF-MS.  |  Pérez, S. and Barceló, D. 2008. Anal Chem. 80: 8135-45. PMID: 18821734
  8. Metabolic profiling identification of metabolites formed in Mediterranean mussels (Mytilus galloprovincialis) after diclofenac exposure.  |  Bonnefille, B., et al. 2017. Sci Total Environ. 583: 257-268. PMID: 28108094
  9. Sono-activated persulfate oxidation of diclofenac: Degradation, kinetics, pathway and contribution of the different radicals involved.  |  Monteagudo, JM., et al. 2018. J Hazard Mater. 357: 457-465. PMID: 29935458
  10. Hydrolytic stability of selected pharmaceuticals and their transformation products.  |  Toński, M., et al. 2019. Chemosphere. 236: 124236. PMID: 31319315
  11. Long-term stability of diclofenac and 4-hydroxydiclofenac in the seawater and sediment microenvironments: Evaluation of biotic and abiotic factors.  |  Świacka, K., et al. 2022. Environ Pollut. 304: 119243. PMID: 35381302
  12. A multi-biomarker approach to assess toxicity of diclofenac and 4-OH diclofenac in Mytilus trossulus mussels - First evidence of diclofenac metabolite impact on molluscs.  |  Świacka, K., et al. 2022. Environ Pollut. 315: 120384. PMID: 36223851
  13. Aceclofenac blocks prostaglandin E2 production following its intracellular conversion into cyclooxygenase inhibitors.  |  Yamazaki, R., et al. 1997. Eur J Pharmacol. 329: 181-7. PMID: 9226412

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

4′-Hydroxy Diclofenac, 1 mg

sc-202423
1 mg
$173.00

4′-Hydroxy Diclofenac, 5 mg

sc-202423A
5 mg
$624.00