Description

3,5-Dichloro-2-Hydroxybenzenesulphonic Acid is a key halogenated phenolic sulfonic acid derivative with significant industrial utility. Its molecular structure, featuring both sulfonic acid and phenolic hydroxyl groups, makes it a versatile intermediate for synthesizing more complex chemical entities. This compound is particularly valuable for manufacturers in the agrochemical, pharmaceutical, and specialty dye sectors seeking to introduce specific functional groups or enhance solubility in their products. We supply this material with a focus on consistent purity and reliable global logistics to support your production processes.

Application

• Agrochemical Intermediate: Serves as a critical building block in the synthesis of advanced herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a precursor for developing active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated phenolic backbone.
• Dye and Pigment Manufacturing: Acts as an intermediate in the production of specialized azo dyes and pigments, contributing to color fastness and solubility.
• Chemical Research & Development: Employed in organic synthesis laboratories for constructing complex molecules and studying structure-activity relationships.
• Surfactant and Detergent Formulation: Its sulfonic acid group allows for potential use in creating anionic surfactants for industrial cleaning applications.
• Polymer Modification: Can be used to introduce hydrophilic or reactive sites into polymer chains for specialty plastics and resins.

Basic Information

Product Name	3,5-Dichloro-2-Hydroxybenzenesulphonic Acid
CAS No.	26281-43-6
Molecular Formula	C6H4Cl2O4S
Molecular Weight	243.07 g/mol
Synonyms	3,5-Dichloro-2-hydroxybenzenesulfonic acid; 2-Hydroxy-3,5-dichlorobenzenesulfonic acid; 3,5-Dichlorosalicylic acid sulfonic acid; Benzenesulfonic acid, 3,5-dichloro-2-hydroxy-; 3,5-Dichloro-2-hydroxybenzene-1-sulfonic acid; 3,5-Dichlorosalicylic acid-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 3,5-Dichloro-2-Hydroxybenzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. We provide full traceability and support our clients with detailed Certificates of Analysis (COA) upon request, ensuring compliance with your internal quality standards and regulatory requirements.

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) and should be handled in a dry environment to prevent degradation. 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	≤ 20 ppm

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