Description

8-Chloronaphthalene-1-Sulfonic Acid is a versatile naphthalene derivative that serves as a key intermediate in the synthesis of more complex organic molecules. Its value lies in the strategic positioning of its functional groups, enabling sulfonation and electrophilic aromatic substitution reactions for the introduction of further complexity. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty dye industries who require high-purity building blocks for advanced synthesis.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with naphthalene-based structures.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and other crop protection agents where the chloronaphthalene moiety is required.
• Dye and Pigment Manufacturing: Serves as a precursor for the synthesis of specific azo dyes, pigments, and optical brighteners, contributing to color fastness and properties.
• Research & Development: Employed in organic chemistry laboratories for method development and the creation of novel chemical entities for material science.
• Liquid Crystal and OLED Materials: Acts as a synthetic intermediate for advanced electronic materials requiring specific aromatic sulfonic acid components.
• Corrosion Inhibitor Formulation: Can be utilized in the development of specialty corrosion inhibitors for industrial applications.

Basic Information

Product Name	8-Chloronaphthalene-1-Sulfonic Acid
CAS No.	145-74-4
Molecular Formula	C10H7ClO3S
Molecular Weight	242.68 g/mol
Synonyms	1-Chloronaphthalene-8-sulfonic Acid; 8-Chloro-1-naphthalenesulfonic Acid; NSC 40332; 1-Naphthalenesulfonic acid, 8-chloro-; 8-Chloronaphthalenesulfonic Acid; α-Chloronaphthalene-ω-sulfonic Acid
EINECS	205-656-8

Quality Control

Every batch of 8-Chloronaphthalene-1-Sulfonic Acid is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide full traceability. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for each shipment upon request, guaranteeing the material meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Keep away from heat sources and incompatible materials such as strong bases and strong oxidizing agents. For long-term storage, conditions of 15-25°C are recommended.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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