Description

4-Chloro-3-Hydroxybenzoic Acid is a versatile halogenated hydroxybenzoic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique structure, featuring both chloro and hydroxy substituents on the aromatic ring, makes it a valuable intermediate for creating compounds with specific electronic and steric properties. This high-purity chemical is essential for research and development laboratories and production facilities in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-quality intermediates.

Application

• Pharmaceutical Intermediate: Key starting material or precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a substituted benzoic acid scaffold.
• Agrochemical Synthesis: Used in the development of herbicides, fungicides, and plant growth regulators where the chlorohydroxy benzoate structure imparts biological activity.
• Liquid Crystal & Polymer Chemistry: Serves as a monomer or modifying agent in the production of specialty polymers and liquid crystal materials for electronic displays.
• Dye & Pigment Manufacturing: Intermediate in the synthesis of complex organic dyes and pigments, contributing to color fastness and specific hue properties.
• Chemical Research & Development: A valuable reagent for medicinal chemistry, material science, and organic synthesis research programs.
• Coordination Chemistry: Can act as a ligand for metal complexes due to the presence of carboxylic acid and phenolic hydroxyl groups.

Basic Information

Product Name	4-Chloro-3-Hydroxybenzoic Acid
CAS No.	34113-69-4
Molecular Formula	C7H5ClO3
Molecular Weight	172.57 g/mol
Synonyms	3-Hydroxy-4-chlorobenzoic Acid; 4-Chloro-3-hydroxybenzoic Acid; 4-Chloro-3-hydroxy-benzoic acid; Benzoic acid, 4-chloro-3-hydroxy-; 4-Chloro-3-hydroxybenzoic acid (CAS 34113-69-4); 4-Chloro-3-hydroxy-benzoesäure (German)
EINECS	Contact for details

Quality Control

Our 4-Chloro-3-Hydroxybenzoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FTIR and melting point determination, to ensure it meets exacting standards for use in sensitive applications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and incompatible materials.

Specification

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