Description

6-(Chlorosulphonyl)-2-Hydroxy-1-Naphthoic Acid is a versatile naphthalene-based intermediate featuring both a chlorosulfonyl group and a carboxylic acid functionality. This unique bifunctional structure makes it a critical building block for synthesizing complex organic molecules, particularly dyes, pigments, and active pharmaceutical ingredients (APIs). It is essential for manufacturers and R&D chemists in the fine chemical, pharmaceutical, and specialty colorant industries seeking to develop or produce high-value compounds.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of high-performance azo dyes, acid dyes, and organic pigments, contributing to color fastness and stability.
• Pharmaceutical Synthesis: Serves as a crucial building block for constructing complex molecular scaffolds in the development of active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific naphthalene-based structures.
• Liquid Crystal and OLED Materials: Acts as an intermediate for creating specialized organic compounds used in electronic displays and optoelectronic devices.
• Polymer Additives: Employed in the synthesis of light stabilizers, UV absorbers, and other functional additives for plastics and coatings.
• Research & Development: A valuable reagent for academic and industrial R&D in organic chemistry, medicinal chemistry, and materials science.

Basic Information

Product Name	6-(Chlorosulphonyl)-2-Hydroxy-1-Naphthoic Acid
CAS No.	70714-67-9
Molecular Formula	C11H7ClO5S
Molecular Weight	286.69 g/mol
Synonyms	2-Hydroxy-6-(chlorosulfonyl)-1-naphthoic acid; 6-Chlorosulfonyl-2-hydroxy-1-naphthoic acid; 1-Naphthoic acid, 6-(chlorosulfonyl)-2-hydroxy-; 2-Hydroxy-6-chlorosulfonylnaphthalene-1-carboxylic acid; 6-Chlorosulfonyl-2-naphthol-1-carboxylic acid; 2-Hydroxy-1-naphthoic acid-6-sulfonyl chloride; 6-(Chlorosulfonyl)-2-naphthol-1-carboxylic acid
EINECS	Contact for details

Quality Control

Our 6-(Chlorosulphonyl)-2-Hydroxy-1-Naphthoic Acid is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for fine chemical intermediates. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 degradation from atmospheric moisture.

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	≤ 1.0%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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