Description

7-Bromonaphthalene-1-Sulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a versatile intermediate in advanced organic synthesis. Its unique structure, featuring both a bromine substituent and a sulfonic acid group on the naphthalene ring, makes it a valuable building block for creating complex molecules with tailored properties. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty dye sectors for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds targeting specific receptors.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators where the naphthalene scaffold provides biological activity.
• Dye and Pigment Manufacturing: Serves as a precursor for synthesizing specialized azo dyes and pigments, contributing to color fastness and specific hue properties.
• Liquid Crystal & OLED Materials: Intermediate in the production of organic electronic materials, where its planar structure and functional groups are advantageous.
• Polymer Modification: Used to introduce sulfonic acid groups into polymers for ion-exchange resins or to enhance solubility and functionality.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new organic reactions and creating compound libraries.

Basic Information

Product Name	7-Bromonaphthalene-1-Sulfonic Acid
CAS No.	23116-37-2
Molecular Formula	C₁₀H₇BrO₃S
Molecular Weight	287.13 g/mol
Synonyms	1-Naphthalenesulfonic acid, 7-bromo-; 7-Bromo-1-naphthalenesulfonic acid; 7-Bromonaphthalene-1-sulphonic acid; NSC 403107; 7-Bromo-1-naphthalenesulphonic acid; 7-Bromonaphthalenesulfonic Acid
EINECS	Contact for details

Quality Control

Our production of 7-Bromonaphthalene-1-Sulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot is analyzed using advanced techniques including HPLC, NMR, and titration to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%

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