Lansoprazole EP Impurity A CAS 213476-12-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.213476-12-1
Molecular FormulaC16H14F3N3O3S
Molecular Weight385.36 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lansoprazole EP Impurity A CAS 213476-12-1 chemical structure

Description

The occurrence of Lansoprazole EP Impurity A is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Lansoprazole EP Impurity A (CAS 213476-12-1), a pharmacopoeial impurity reference standard (molecular formula C16H14F3N3O3S, MW 385.36 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Lansoprazole EP Impurity A (C16H14F3N3O3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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), Lansoprazole EP Impurity A 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 FormulaC16H14F3N3O3S
Molecular Weight385.36 g/mol
Purity>95%
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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2017
Halogen ContentF-containing
Nitrogen Atoms3
Sulfur Atoms1

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