Description

3,5-Dichloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid is a specialized organic sulfonic acid derivative that serves as a key synthetic intermediate. Its unique halogenated and sulfonated structure makes it valuable for constructing complex molecules with specific electronic and steric properties. This compound is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, particularly those requiring a sulfonated phenolic scaffold for bioactivity or solubility modification.
• Agrochemical Synthesis: Serves as a building block for herbicides, fungicides, and plant growth regulators, where the dichloro and ethyl groups contribute to biological activity.
• Dye and Pigment Manufacturing: Acts as a precursor or coupling agent in the production of specialized azo dyes and high-performance pigments.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, enhancing properties like hydrophilicity, ion-exchange capacity, or catalytic activity.
• Chemical Research: A valuable reagent in organic synthesis for studying electrophilic aromatic substitution and sulfonation reactions.
• Ligand Synthesis: Used to create chelating agents or ligands for metal catalysis and coordination chemistry.

Basic Information

Product Name	3,5-Dichloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid
CAS No.	104207-31-0
Molecular Formula	C8H8Cl2O4S
Molecular Weight	271.12 g/mol
Synonyms	4-Ethyl-2-hydroxy-3,5-dichlorobenzenesulfonic acid; 3,5-Dichloro-4-ethyl-2-hydroxybenzenesulphonic acid; 2-Hydroxy-3,5-dichloro-4-ethylbenzenesulfonic acid; Benzenesulfonic acid, 3,5-dichloro-4-ethyl-2-hydroxy-; 4-Ethyl-3,5-dichloro-2-hydroxybenzenesulfonic acid
EINECS	Contact for details

Quality Control

Our 3,5-Dichloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition. Due to its acidic and potentially hygroscopic nature, the container must be kept sealed to exclude moisture.

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)	≤ 20 ppm

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