Description

4-Chloro-1-Hydroxy-2-Naphthoic Acid is a versatile naphthalene derivative that serves as a key synthetic intermediate in advanced organic chemistry. Its molecular structure, featuring both a carboxylic acid and a phenolic hydroxyl group, makes it a valuable building block for creating complex molecules with specific functionalities. This compound is essential for research and development laboratories and industrial-scale manufacturers in the pharmaceutical and specialty chemical sectors. Its primary value lies in enabling the synthesis of dyes, pigments, and active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with naphthalene-based structures.
• Dye and Pigment Manufacturing: Serves as a key starting material for producing azo dyes, lake pigments, and other colorants, contributing to color fastness and specific hues.
• Organic Synthesis Building Block: Used in research and development for constructing complex organic molecules, including ligands for catalysts and functional materials.
• Agrochemical Synthesis: Employed in the development of certain herbicides and plant growth regulators where its chloronaphthoic acid structure is beneficial.
• Material Science Research: Investigated for potential use in the development of organic semiconductors, liquid crystals, and polymers.

Basic Information

Product Name	4-Chloro-1-Hydroxy-2-Naphthoic Acid
CAS No.	5409-15-4
Molecular Formula	C11H7ClO3
Molecular Weight	222.62 g/mol
Synonyms	4-Chloro-1-hydroxy-2-naphthalenecarboxylic acid; 1-Hydroxy-4-chloro-2-naphthoic acid; 4-Chloro-1-naphthol-2-carboxylic acid; 2-Naphthoic acid, 4-chloro-1-hydroxy-; 4-Chloro-1-naphthol-2-carboxylic acid; NSC 403107; 4-Chloro-1-hydroxy-2-naphthalenecarboxylic acid
EINECS	226-498-3

Quality Control

Our 4-Chloro-1-Hydroxy-2-Naphthoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the stringent requirements for use as a pharmaceutical intermediate and in other high-value 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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	215°C - 220°C
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.