Mirabegron Impurity 26 CAS 1603-91-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.1603-91-4
Molecular FormulaC4H6N2S
Molecular Weight114.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Mirabegron Impurity 26 CAS 1603-91-4 chemical structure

Description

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

CATO supplies Mirabegron Impurity 26 (CAS 1603-91-4), a pharmacopoeial impurity reference standard (molecular formula C4H6N2S, MW 114.17 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrile group, sulfur-containing functionality, Mirabegron Impurity 26 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 114.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC4H6N2S
Molecular Weight114.17 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Nitrogen Atoms2
Sulfur Atoms1

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