Description

4-Chlorosalicylic Acid is a versatile chlorinated derivative of salicylic acid, serving as a critical synthetic intermediate in advanced organic chemistry. Its unique structure, featuring both a carboxylic acid and a phenolic hydroxyl group with a chlorine substituent, makes it a valuable building block for creating more complex molecules with tailored properties. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs), antimicrobial agents, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its bioactive phenolic core.
• Dye and Pigment Manufacturing: Serves as a starting material for azo dyes and other complex colorants, where the chlorine group modifies shade and fastness properties.
• Organic Synthesis & Research: A valuable reagent for introducing the 4-chlorosalicylate moiety into target molecules, facilitating studies in medicinal chemistry and material science.
• Coordination Chemistry: Acts as a ligand for metal ions, useful in catalysis and the preparation of metal-organic frameworks (MOFs) or complexes.

Basic Information

Product Name	4-Chlorosalicylic Acid
CAS No.	5106-98-9
Molecular Formula	C7H5ClO3
Molecular Weight	172.57 g/mol
Synonyms	4-Chloro-2-hydroxybenzoic acid; 2-Hydroxy-4-chlorobenzoic acid; p-Chlorosalicylic acid; 4-CSA; Salicylic acid, 4-chloro-; Benzoic acid, 2-hydroxy-4-chloro-
EINECS	225-823-7

Quality Control

Our 4-Chlorosalicylic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for synthesis and research applications. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming specifications for identity, purity, and impurity profiles. We support compliance with global regulatory frameworks, including REACH.

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 product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	207°C - 212°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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