2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide CAS 1805342-99-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1805342-99-7
Molecular FormulaC6H4BrClF2N2O2S
Molecular Weight321.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide CAS 1805342-99-7 chemical structure

Description

CATO manufactures 2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide 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.

2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide (CAS 1805342-99-7) is a high-purity analytical reference standard with the molecular formula C6H4BrClF2N2O2S and a molecular weight of 321.53 g/mol.

2-Bromo-3-chloro-5-(difluoromethyl)pyridine-4-sulfonamide (C6H4BrClF2N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

Physical & Chemical Properties

Molecular FormulaC6H4BrClF2N2O2S
Molecular Weight321.53 g/mol
Purity97%+
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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1995
Halogen ContentF/Cl/Br-containing
Nitrogen Atoms2
Sulfur Atoms1

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