Description

3,5-Dichloro-4-Hydroxybenzenesulphonic Acid is a versatile halogenated phenolic sulfonic acid derivative. This compound serves as a critical synthetic intermediate and functional building block in advanced chemical manufacturing. It is primarily utilized by industries involved in the production of pharmaceuticals, agrochemicals, and specialty dyes. Its unique structure makes it valuable for introducing specific functional groups into complex molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a halogenated phenolic sulfonate moiety.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators where its structure contributes to biological activity.
• Dye and Pigment Manufacturing: Acts as a coupling agent and intermediate in the production of azo dyes and other complex colorants.
• Chemical Research & Development: Serves as a reagent for introducing sulfonic acid groups into organic molecules in laboratory-scale synthesis.
• Polymer Modification: Can be used to synthesize functional monomers or as a modifier to impart specific properties like hydrophilicity to polymers.
• Cross-linking Agent: Potential use in creating cross-linked networks in resins or specialty materials due to its multiple reactive sites.

Basic Information

Product Name	3,5-Dichloro-4-Hydroxybenzenesulphonic Acid
CAS No.	25319-98-6
Molecular Formula	C6H4Cl2O4S
Molecular Weight	243.07 g/mol
Synonyms	4-Hydroxy-3,5-dichlorobenzenesulfonic Acid; 3,5-Dichloro-4-hydroxybenzenesulfonic Acid; Benzenesulfonic acid, 3,5-dichloro-4-hydroxy-; 3,5-Dichloro-4-hydroxybenzene-1-sulfonic acid; 3,5-Dichloro-4-hydroxyphenylsulfonic acid
EINECS	Contact for details

Quality Control

Our 3,5-Dichloro-4-Hydroxybenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and physical characteristics are provided with every shipment. We can support compliance requirements for various industrial and research applications.

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); ensure containers are sealed tightly after use 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	≤ 2.0%
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.