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Naproxen

Naproxen Impurities & Reference Standards

Naproxen is a high-purity active pharmaceutical ingredient (API) used in the formulation and manufacture of pharmaceutical products. The compound carries the molecular formula C14H14O3, corresponding to a molecular weight of 230.26 g/mol. Analytical laboratories rely on Naproxen and its associated impurity standards for method development, quality control testing, and pharmacopoeial compliance (ICH, USP, BP, EP). Naproxen is available as a certified impurity reference standard with CoA, HPLC chromatograms, and spectroscopic data to support analytical method development and regulatory compliance.


Associated Impurities

Naproxen Impurity – G

  • CAS No: 23979-41-1
  • Mol. F.: C14H14O3

Naproxen Impurity – I

  • CAS No: 23981-47-7
  • Mol. F.: C14H14O3

Naproxen Impurity – K

  • CAS No: 77301-42-9
  • Mol. F.: C14H14O3

Naproxen Impurity – L

  • CAS No: 3900-45-6
  • Mol. F.: C14H14O3

Naproxen Impurity – M

  • CAS No: 93-04-9
  • Mol. F.: C14H14O3

Naproxen Impurity – N

  • CAS No: 5111-65-9
  • Mol. F.: C14H14O3

Naproxen Impurity – O

  • CAS No: 2471-70-7
  • Mol. F.: C14H14O3
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