Clarithromycin EP Impurity N CAS 144604-03-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.144604-03-5
Molecular FormulaC38H67NO12
Molecular Weight729.94 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Clarithromycin EP Impurity N CAS 144604-03-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 729.94 g/mol gives Clarithromycin EP Impurity N distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Clarithromycin EP Impurity N (CAS 144604-03-5), a pharmacopoeial impurity reference standard (molecular formula C38H67NO12, MW 729.94 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Clarithromycin EP Impurity N (C38H67NO12) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 729.94 g/mol, it falls into the high-molecular-weight range. 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), Clarithromycin EP Impurity N 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 FormulaC38H67NO12
Molecular Weight729.94 g/mol
Purity>95%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998
Nitrogen Atoms1

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