Description

5-Chloro-3-[(5-Chloro-2-Hydroxyphenyl)Methyl]-2-Hydroxybenzenesulphonic Acid is a specialized organic sulfonic acid derivative, valued for its role as a key synthetic intermediate and functional component in advanced chemical synthesis. Its molecular structure, featuring phenolic and sulfonic acid groups, provides unique reactivity and chelating properties essential for high-value applications. This compound is primarily utilized by manufacturers in the pharmaceutical, agrochemical, and specialty dye industries for research and production purposes.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring specific halogenated phenolic structures.
• Agrochemical Synthesis: Used in the development and production of advanced herbicides, fungicides, and plant growth regulators where its chlorinated phenolic core is integral to biological activity.
• Dye and Pigment Manufacturing: Acts as an intermediate for synthesizing complex azo dyes and high-performance pigments, contributing to color fastness and stability.
• Metal Chelating Agent: Functions as a ligand or chelating agent in formulations for water treatment, metal extraction, and as an additive in industrial cleaning processes.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymer chains, enhancing properties like hydrophilicity, ion-exchange capacity, or catalytic activity.
• Research & Development: A valuable reagent in organic chemistry R&D for constructing complex molecules and studying structure-activity relationships.

Basic Information

Item	Detail
Product Name	5-Chloro-3-[(5-Chloro-2-Hydroxyphenyl)Methyl]-2-Hydroxybenzenesulphonic Acid
CAS No.	83817-56-5
Molecular Formula	C13H10Cl2O5S
Molecular Weight	349.19 g/mol
Synonyms	5-Chloro-3-[(5-chloro-2-hydroxyphenyl)methyl]-2-hydroxybenzenesulfonic acid; 3,5-Dichloro-2,2'-dihydroxybenzylsulfonic acid; 83817-56-5; 5-Chloro-3-[(5-chloro-2-hydroxyphenyl)methyl]-2-hydroxybenzenesulfonic acid; 2-Hydroxy-5-chloro-3-[(5-chloro-2-hydroxyphenyl)methyl]benzenesulfonic acid; 3-(5-Chloro-2-hydroxybenzyl)-5-chloro-2-hydroxybenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 5-Chloro-3-[(5-Chloro-2-Hydroxyphenyl)Methyl]-2-Hydroxybenzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and titration for assay confirmation, to ensure consistent quality and specification compliance. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical parameters.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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