Febuxostat Impurity 49 CAS 1206550-99-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1206550-99-3
Molecular FormulaC15H17NO3S
Molecular Weight291.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Febuxostat Impurity 49 CAS 1206550-99-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 291.37 g/mol gives Febuxostat Impurity 49 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Febuxostat Impurity 49 (CAS 1206550-99-3) is a certified pharmaceutical impurity reference standard with the molecular formula C15H17NO3S and a molecular weight of 291.37 g/mol.

Febuxostat Impurity 49 (C15H17NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 Febuxostat Impurity 49 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 FormulaC15H17NO3S
Molecular Weight291.37 g/mol
Purity97%+
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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms1
Sulfur Atoms1

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