Flurbiprofen Impurity 138 CAS 88975-22-8

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.88975-22-8
Molecular FormulaC15H20FNO4
Molecular Weight297.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flurbiprofen Impurity 138 CAS 88975-22-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 297.32 g/mol gives Flurbiprofen Impurity 138 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Flurbiprofen Impurity 138 (CAS 88975-22-8), a pharmacopoeial impurity reference standard (molecular formula C15H20FNO4, MW 297.32 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Flurbiprofen Impurity 138 (C15H20FNO4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).

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.

CATO manufactures Flurbiprofen Impurity 138 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC15H20FNO4
Molecular Weight297.32 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Halogen ContentF-containing
Nitrogen Atoms1

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