Benzylpenicillin CP Impurity I CAS 3264-88-8

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.3264-88-8
Molecular FormulaC16H18N2O4S
Molecular Weight334.39 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Benzylpenicillin CP Impurity I CAS 3264-88-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 334.39 g/mol gives Benzylpenicillin CP Impurity I distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

As a process- or degradation-related impurity, Benzylpenicillin CP Impurity I (CAS 3264-88-8, C16H18N2O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Benzylpenicillin CP Impurity I (C16H18N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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.

As a certified reference material (CRM), Benzylpenicillin CP Impurity I 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 FormulaC16H18N2O4S
Molecular Weight334.39 g/mol
Purity>90%
StorageStore at 2-8°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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Nitrogen Atoms2
Sulfur Atoms1

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