Description

5-Bromonaphthalene-2-Sulfonic Acid is a specialized brominated naphthalene derivative that serves as a versatile sulfonic acid intermediate. This compound is valued for its ability to introduce both bromine and sulfonic acid functional groups into target molecules, enabling precise structural modifications. It is primarily sought after by research chemists and process development teams in the pharmaceutical, agrochemical, and advanced materials sectors for synthesizing novel active ingredients and functional dyes.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring brominated aromatic sulfonamide or sulfonate ester moieties.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators where the bromonaphthalene scaffold provides specific biological activity.
• Dye and Pigment Manufacturing: Serves as a precursor for the production of specialized dyes, pigments, and optical brighteners, leveraging the naphthalene structure for color and stability.
• Polymer and Material Science: Employed as a monomer or functionalization agent to create sulfonated polymers with specific properties like ion-exchange capacity or hydrophilicity.
• Ligand and Catalyst Development: Useful in organometallic chemistry for creating complex ligands used in catalytic systems.
• Research and Development: A valuable reagent in academic and industrial R&D for exploring new chemical reactions and synthesizing complex organic molecules.

Basic Information

Product Name	5-Bromonaphthalene-2-Sulfonic Acid
CAS No.	179419-11-5
Molecular Formula	C₁₀H₇BrO₃S
Molecular Weight	287.13 g/mol
Synonyms	2-Naphthalenesulfonic acid, 5-bromo-; 5-Bromo-2-naphthalenesulfonic acid; 5-Bromonaphthalene-2-sulphonic acid; 5-Bromo-β-naphthalenesulfonic acid; 1-Bromo-6-sulfonaphthalene; 5-Bromo-2-naphthalenesulphonic acid; NSC 403079
EINECS	Contact for details

Quality Control

Our 5-Bromonaphthalene-2-Sulfonic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 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.