Lansoprazole EP Impurity C/USP Impurity B CAS 103577-40-8

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.103577-40-8
Molecular FormulaC16H14F3N3OS
Molecular Weight353.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lansoprazole EP Impurity C/USP Impurity B CAS 103577-40-8 chemical structure

Description

CATO manufactures Lansoprazole EP Impurity C/USP Impurity B 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 Lansoprazole EP Impurity C/USP Impurity B (CAS 103577-40-8), a pharmacopoeial impurity reference standard (molecular formula C16H14F3N3OS, MW 353.36 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Lansoprazole EP Impurity C/USP Impurity B (C16H14F3N3OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. 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. 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.

Physical & Chemical Properties

Molecular FormulaC16H14F3N3OS
Molecular Weight353.36 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Halogen ContentF-containing
Nitrogen Atoms3
Sulfur Atoms1

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