Palbociclib Impurity 44 CAS CATO-C4X-112544

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-112544
Molecular FormulaC8H12O5
Molecular Weight188.18 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Palbociclib Impurity 44 CAS CATO-C4X-112544 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 188.18 g/mol gives Palbociclib Impurity 44 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Palbociclib Impurity 44 (CAS CATO-C4X-112544), a pharmacopoeial impurity reference standard (molecular formula C8H12O5, MW 188.18 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C8H12O5, Palbociclib Impurity 44 contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 188.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), Palbociclib Impurity 44 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 FormulaC8H12O5
Molecular Weight188.18 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing

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