Ibuprofen Impurity 157 CAS 62049-65-4

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.62049-65-4
Molecular FormulaC12H17Cl
Molecular Weight196.72 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ibuprofen Impurity 157 CAS 62049-65-4 chemical structure

Description

As a certified reference material (CRM), Ibuprofen Impurity 157 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

CATO supplies Ibuprofen Impurity 157 (CAS 62049-65-4), a pharmacopoeial impurity reference standard (molecular formula C12H17Cl, MW 196.72 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to chlorine substitution, an aromatic ring system, Ibuprofen Impurity 157 is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 196.72 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

Physical & Chemical Properties

Molecular FormulaC12H17Cl
Molecular Weight196.72 g/mol
Purity≥95%
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1974
Halogen ContentCl-containing

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