Tulobuterol Impurity N3 CAS 2425-28-7

Description

Compared with other compounds in its class, the molecular weight of 201.06 g/mol gives Tulobuterol Impurity N3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Tulobuterol Impurity N3 (CAS 2425-28-7), a pharmacopoeial impurity reference standard (molecular formula C8H9BrO, MW 201.06 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Tulobuterol Impurity N3 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), Tulobuterol Impurity N3 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

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