Dapoxetine Impurity 4 CAS 119357-34-5

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.119357-34-5
Molecular FormulaC19H19NO
Molecular Weight277.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dapoxetine Impurity 4 CAS 119357-34-5 chemical structure

Description

CATO manufactures Dapoxetine Impurity 4 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.

CATO supplies Dapoxetine Impurity 4 (CAS 119357-34-5), a pharmacopoeial impurity reference standard (molecular formula C19H19NO, MW 277.36 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Dapoxetine Impurity 4 (C19H19NO) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC19H19NO
Molecular Weight277.36 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms1

Related Dapoxetine Standards

Recommended Standards

Why CATO?