Ropivacaine Impurity 13 CAS CATO-C4X-175313

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-175313
Molecular FormulaC20H17N3O2
Molecular Weight331.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ropivacaine Impurity 13 CAS CATO-C4X-175313 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 331.37 g/mol gives Ropivacaine Impurity 13 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ropivacaine Impurity 13 (CAS CATO-C4X-175313), a pharmacopoeial impurity reference standard (molecular formula C20H17N3O2, MW 331.37 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C20H17N3O2, Ropivacaine Impurity 13 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 331.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 Ropivacaine Impurity 13 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 FormulaC20H17N3O2
Molecular Weight331.37 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3

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