Duloxetine EP Impurity E CAS 1033803-59-6

Description

Compared with other compounds in its class, the molecular weight of 297.41 g/mol gives Duloxetine EP Impurity E distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Duloxetine EP Impurity E (CAS 1033803-59-6), a pharmacopoeial impurity reference standard (molecular formula C18H19NOS, MW 297.41 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Duloxetine EP Impurity E (C18H19NOS) is characterized by a steroid core, an amide group, sulfur-containing functionality, 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.

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.

CATO manufactures Duloxetine EP Impurity E 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

Why CATO?

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