Friday, Jul 24, 2026 The claims desk. Receipts included. POWERED BY LENZ ↗
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SCIENCE

The Claim

The chemical name of diclofenac is 2-[(2,6-dichlorophenyl)amino]phenylacetic acid.

Verified by Lenz ·

The Short Version

The stated name correctly identifies diclofenac’s free-acid form. Authoritative references often prefer equivalent variants such as "benzeneacetic acid" or "dichloroanilino" wording, but these describe the same structure. The statement is accurate, though it is not the only standard naming form for diclofenac.

Caveats

  • Several major databases prefer alternate but equivalent names, so this is a valid chemical name rather than the uniquely preferred one in all references.
  • Drug labels often name diclofenac salts such as diclofenac sodium or diclofenac potassium, which are different forms from the free acid named here.
  • The singular phrasing "the chemical name" can mislead because compounds commonly have multiple accepted systematic and synonym forms.

The Receipts

  1. Voltaren (diclofenac sodium enteric-coated tablets) label

    FDA

  2. diclofenac sodium - NCI Drug Dictionary

    National Cancer Institute

  3. Diclofenac

    NIST WebBook

  4. Diclofenac | CID 3033

    PubChem

  5. Diclofenac - the NIST WebBook

    NIST

  6. Diclofenac | C14H11Cl2NO2

    ChemSpider

  7. 2-[2-[(2,6-Dichlorophenyl)amino]phenyl]acetic Acid (Diclofenac)

    LGC Standards

  8. Diclofenac | C14H11Cl2NO2 | CID 3033 - PubChem - NIH

    PubChem - NIH

  9. Diclofenac: Uses, Interactions, Mechanism of Action

    DrugBank

  10. Diclofenac

    PDSP Ki Database (UNC)

+ 11 more sources — see the full list on Lenz

Filed Under

Diclofenac