Description

3-Bromo-4-Nitrobenzene-1-Sulfonyl Chloride is a high-purity, multi-functional chemical intermediate essential for advanced organic synthesis. Its reactive sulfonyl chloride and halogenated nitroaromatic structure makes it a critical building block for constructing complex molecules with tailored properties. This compound is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used to create advanced herbicides, fungicides, and pesticides by introducing the sulfonyl moiety into active molecules.
• Dyestuff and Pigment Manufacturing: Serves as a building block for producing high-performance, light-fast azo dyes and organic pigments.
• Polymer Chemistry: Employed in the synthesis of specialty polymers and functional materials, such as sulfonated polymers for ion-exchange membranes.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new reaction pathways and creating complex molecular architectures.
• Ligand and Catalyst Preparation: Useful for synthesizing specialized ligands and organocatalysts used in asymmetric synthesis and transition metal catalysis.

Basic Information

Product Name	3-Bromo-4-Nitrobenzene-1-Sulfonyl Chloride
CAS No.	1181458-26-3
Molecular Formula	C6H3BrClNO4S
Molecular Weight	300.51 g/mol
Synonyms	3-Bromo-4-nitrobenzenesulfonyl chloride; 4-Nitro-3-bromobenzenesulfonyl chloride; 1-Bromo-2-nitro-4-(chlorosulfonyl)benzene; Benzenesulfonyl chloride, 3-bromo-4-nitro-; 3-Bromo-4-nitrobenzene sulfonyl chloride; 3-Br-4-NO2-PhSO2Cl
EINECS	Contact for details

Quality Control

Our 3-Bromo-4-Nitrobenzene-1-Sulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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