Ibuprofen EP Impurity N CAS 3585-52-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.3585-52-2
Molecular FormulaC11H14O2
Molecular Weight178.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ibuprofen EP Impurity N CAS 3585-52-2 chemical structure

Description

Ibuprofen EP Impurity N (C11H14O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Ibuprofen EP Impurity N (CAS 3585-52-2) is a certified pharmaceutical impurity reference standard with the molecular formula C11H14O2 and a molecular weight of 178.23 g/mol.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC11H14O2
Molecular Weight178.23 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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