Description

4-Bromo-3-Nitrobenzenesulphonicacid is a versatile aromatic sulfonic acid derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in the strategic positioning of its bromo and nitro functional groups, which enable precise electrophilic substitution and coupling reactions for building complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require high-purity building blocks for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a brominated nitrobenzene sulfonate scaffold.
• Agrochemical Synthesis: Used in the manufacturing of herbicides, fungicides, and other crop protection agents where the sulfonic acid group enhances solubility and bioavailability.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing azo dyes and other complex colorants, contributing to chromophore development and color fastness.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new organic reactions, catalytic processes, and material science applications.
• Ligand and Catalyst Preparation: Useful for synthesizing specialized ligands and metal-organic complexes used in homogeneous catalysis.
• Polymer Modification: Can be incorporated into polymer chains to introduce sulfonic acid groups, modifying properties like hydrophilicity and ion-exchange capacity.

Basic Information

Product Name	4-Bromo-3-Nitrobenzenesulphonicacid
CAS No.	584-49-6
Molecular Formula	C6H4BrNO5S
Molecular Weight	282.07 g/mol
Synonyms	4-Bromo-3-nitrobenzenesulfonic acid; 3-Nitro-4-bromobenzenesulfonic acid; Benzenesulfonic acid, 4-bromo-3-nitro-; 4-Bromo-3-nitrobenzene-1-sulfonic acid; 584-49-6; 4-Br-3-NO2-C6H3-SO3H; 4-Bromo-3-nitro-phenylsulfonic acid
EINECS	209-537-5

Quality Control

Our 4-Bromo-3-Nitrobenzenesulphonicacid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and titration methods, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its strong acid nature, keep away from incompatible materials such as strong bases, reducing agents, and organic materials. The container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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