Tazobactam Impurity 39 CAS 1428131-22-9

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1428131-22-9
Molecular FormulaC23H22N4O5S
Molecular Weight466.51 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tazobactam Impurity 39 CAS 1428131-22-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 466.51 g/mol gives Tazobactam Impurity 39 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Tazobactam Impurity 39 (CAS 1428131-22-9), a pharmacopoeial impurity reference standard (molecular formula C23H22N4O5S, MW 466.51 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Tazobactam Impurity 39 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 466.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Tazobactam Impurity 39 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 FormulaC23H22N4O5S
Molecular Weight466.51 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms4
Sulfur Atoms1

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