Description

3,5-Dichloro-2-Hydroxy-4-Methylbenzenesulfonic Acid is a specialized organic sulfonic acid derivative that serves as a critical intermediate in advanced chemical synthesis. Its unique halogenated phenolic structure makes it a valuable building block for creating complex molecules with specific functional properties. This compound is essential for manufacturers in the agrochemical and pharmaceutical sectors, where it is used to develop active ingredients and fine chemicals requiring precise sulfonation and halogenation patterns.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of modern herbicides, fungicides, and plant growth regulators, where its sulfonic acid group and chlorine substituents are crucial for bioactivity.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs), particularly in the development of compounds requiring a sulfonated aromatic core.
• Dye and Pigment Manufacturing: Functions as an intermediate in the production of specialized azo dyes and high-performance pigments, contributing to color fastness and molecular stability.
• Polymer Additives: Employed in the synthesis of monomers and additives for engineering plastics, where it can impart flame retardancy or modify polymer solubility.
• Research & Development: Serves as a valuable reagent in organic chemistry R&D for exploring new sulfonation reactions and creating novel chemical entities.
• Water Treatment Chemicals: Can be utilized in the formulation of certain ion-exchange resins or specialty scale inhibitors.

Basic Information

Product Name	3,5-Dichloro-2-Hydroxy-4-Methylbenzenesulfonic Acid
CAS No.	71550-51-1
Molecular Formula	C7H6Cl2O4S
Molecular Weight	257.09 g/mol
Synonyms	2-Hydroxy-4-methyl-3,5-dichlorobenzenesulfonic acid; 4-Methyl-2,6-dichlorophenol-3-sulfonic acid; 3,5-Dichloro-4-methyl-2-hydroxybenzenesulfonic acid; 2,6-Dichloro-4-methylphenol-3-sulfonic acid; Benzenesulfonic acid, 3,5-dichloro-2-hydroxy-4-methyl-; DCMSA; 71550-51-1
EINECS	Contact for details

Quality Control

Our production of 3,5-Dichloro-2-Hydroxy-4-Methylbenzenesulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and identity confirmation. Certificates of Analysis (COA) documenting all critical parameters are available upon request. We are committed to meeting the specific purity requirements of our clients' applications, from industrial to research grades.

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 kept under dry conditions to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Single Unknown Impurity	≤ 0.5%

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