Ketoprofen Impurity 111 CAS CATO-C4X-1471111

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1471111
Molecular FormulaC15H12O4
Molecular Weight256.25 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ketoprofen Impurity 111 CAS CATO-C4X-1471111 chemical structure

Description

The occurrence of Ketoprofen Impurity 111 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ketoprofen Impurity 111 (CAS CATO-C4X-1471111) is a certified pharmaceutical impurity reference standard with the molecular formula C15H12O4 and a molecular weight of 256.25 g/mol.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, Ketoprofen Impurity 111 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Impurity 111 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 FormulaC15H12O4
Molecular Weight256.25 g/mol
AppearancePale yellow to yellow crystalline powder
Purity≥95%
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

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