5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine CAS 79091-24-0

Purity 97%+In StockPharmaceutical Standards
CAS No.79091-24-0
Molecular FormulaC5H4BrClN2O2S
Molecular Weight271.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine CAS 79091-24-0 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine.

CATO supplies 5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine (CAS 79091-24-0), a certified reference material (molecular formula C5H4BrClN2O2S, MW 271.52 g/mol) for analytical method development and quality control.

Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, 5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.52 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 5-Bromo-4-chloro-2-(methylsulfonyl)pyrimidine 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 FormulaC5H4BrClN2O2S
Molecular Weight271.52 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
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)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1979
Halogen ContentCl/Br-containing
Nitrogen Atoms2
Sulfur Atoms1

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