Description

3-Pyridinesulfonyl Chloride, 4-Bromo- is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. This compound matters for its role as a key building block in the development of complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the life sciences sector for constructing sulfonamide linkages and introducing functionalized pyridine scaffolds into target structures.

Application

• Pharmaceutical Intermediate: Critical for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, especially those containing sulfonamide pharmacophores.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides that require brominated pyridine motifs.
• Material Science Research: Serves as a precursor for creating functionalized polymers, ligands for metal-organic frameworks (MOFs), and other advanced materials.
• Chemical Biology & Proteomics: Employed in the design and synthesis of activity-based probes (ABPs) and other molecular tools for studying enzyme function.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for fine chemical and custom synthesis houses serving the global biotechnology and pharmaceutical markets.

Basic Information

Product Name	3-Pyridinesulfonyl Chloride, 4-Bromo-
CAS No.	1060808-89-0
Molecular Formula	C5H3BrClNO2S
Molecular Weight	256.50 g/mol
Synonyms	4-Bromo-3-pyridinesulfonyl chloride; 4-Bromopyridine-3-sulfonyl chloride; 3-Pyridinesulfonyl chloride, 4-bromo-; 4-Bromo-3-pyridine sulfonyl chloride; 4-Bromopyridine-3-sulfonylchloride; 4-Bromo-3-sulfonylchloridopyridine; 4-Bromopyridine-3-sulfonic acid chloride
EINECS	Contact for details

Quality Control

Our 3-Pyridinesulfonyl Chloride, 4-Bromo- is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids and incompatible organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.