Ketoprofen EP Impurity L (Mixture of Enantiomer) CAS 1797984-80-5

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.1797984-80-5
Molecular FormulaC19H20O3
Molecular Weight296.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ketoprofen EP Impurity L (Mixture of Enantiomer) CAS 1797984-80-5 chemical structure

Description

The occurrence of Ketoprofen EP Impurity L (Mixture of Enantiomer) is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

As a process- or degradation-related impurity, Ketoprofen EP Impurity L (Mixture of Enantiomer) (CAS 1797984-80-5, C19H20O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Based on its molecular formula C19H20O3, Ketoprofen EP Impurity L (Mixture of Enantiomer) contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 296.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Ketoprofen EP Impurity L (Mixture of Enantiomer) 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.

Physical & Chemical Properties

Molecular FormulaC19H20O3
Molecular Weight296.36 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>90%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994

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