Cefoperazone Impurity 45 CAS 16681-77-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.16681-77-9
Molecular FormulaC2H4N4
Molecular Weight84.08 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cefoperazone Impurity 45 CAS 16681-77-9 chemical structure

Description

Owing to a nitrile group, Cefoperazone Impurity 45 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 84.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a process- or degradation-related impurity, Cefoperazone Impurity 45 (CAS 16681-77-9, C2H4N4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

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 Cefoperazone Impurity 45 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 FormulaC2H4N4
Molecular Weight84.08 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1961
Nitrogen Atoms4

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