Agomelatine Impurity 32 CAS 138112-79-5

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.138112-79-5
Molecular FormulaC16H19NO2
Molecular Weight257.33 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Agomelatine Impurity 32 CAS 138112-79-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 257.33 g/mol gives Agomelatine Impurity 32 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Agomelatine Impurity 32 (CAS 138112-79-5), a pharmacopoeial impurity reference standard (molecular formula C16H19NO2, MW 257.33 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Agomelatine Impurity 32 (C16H19NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 257.33 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

As a certified reference material (CRM), Agomelatine Impurity 32 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 FormulaC16H19NO2
Molecular Weight257.33 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
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.)1996
Nitrogen Atoms1

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