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PHR1935 Supelco

Ibuprofen Impurity N

Pharmaceutical Secondary Standard; Certified Reference Material

Synonym: (2RS)-2-(4-ETHYLPHENYL) PROPANOIC ACID, (2RS)-2-(4-Ethylphenyl)propanoic acid, (2RS)-2-(4-Ethylphenyl)propionic acid, 4-Ethyl-α-methylbenzeneacetic acid, p-Ethylhydratropic acid

  • CAS Number 3585-52-2

  • Empirical Formula (Hill Notation) C11H14O2

  • Molecular Weight 178.23

  •  Beilstein Registry Number 204763



Related Categories Analytical Standards, Analytical/Chromatography, Ibuprofen Impurities, Pharmaceutical Impurities, Pharmacopeia & Metrological Institutes Standards More...
grade   certified reference material
  pharmaceutical secondary standard
packaging   pkg of 20 mg
Featured Industry   Pharmaceutical (small molecule)


Analysis Note

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Other Notes

This product was designed, produced and verified for accuracy and stability in accordance with ISO/IEC 17025:2005 (ANAB Cert AT-1467), ISO GUIDES 34:2009 (ANAB Cert AR-1470).


To see an example of a Certificate of Analysis for this material enter LRAB2589 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis

Protocols & Articles
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