Description

5-Chloro-2-Hydroxybenzoic Acid is a versatile chlorinated phenolic acid derivative, serving as a critical building block in advanced organic synthesis. Its bifunctional structure, featuring both a carboxylic acid and a phenolic hydroxyl group, makes it a valuable intermediate for creating complex molecules with tailored properties. This compound is essential for research and production in the pharmaceutical, agrochemical, and specialty chemical industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators, leveraging its halogenated aromatic structure.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing azo dyes and other complex colorants.
• Polymer Additives: Employed in the synthesis of UV stabilizers, antioxidants, and other functional additives for plastics and coatings.
• Chemical Research: A valuable reagent in organic chemistry laboratories for studying electrophilic aromatic substitution and esterification reactions.
• Coordination Chemistry: Serves as a ligand for metal complexes in catalytic and material science applications.

Basic Information

Product Name	5-Chloro-2-Hydroxybenzoic Acid
CAS No.	321-14-2
Molecular Formula	C7H5ClO3
Molecular Weight	172.57 g/mol
Synonyms	5-Chlorosalicylic Acid; 2-Hydroxy-5-chlorobenzoic Acid; 5-Chloro-2-hydroxybenzoic acid; NSC 403697; 5-Chlorosalicylate; 5-Chloro-2-hydroxy-benzoic acid; 5-Chlorosalicyclic Acid
EINECS	206-280-2

Quality Control

Our 5-Chloro-2-Hydroxybenzoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container must be kept tightly closed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	168°C - 172°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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