Description

5-Chloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid is a specialized organic sulfonic acid derivative that serves as a versatile intermediate in advanced chemical synthesis. Its molecular structure, featuring both a sulfonic acid group and a phenolic hydroxyl, makes it a valuable building block for creating functional molecules with specific properties. This compound is primarily utilized by manufacturers in the agrochemical, pharmaceutical, and specialty dye industries for the development of active ingredients and performance chemicals.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of modern herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block for creating active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated aromatic core.
• Dye and Pigment Manufacturing: Serves as an intermediate for producing sulfonated azo dyes and other specialty colorants with enhanced solubility and fastness properties.
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid functionality into complex molecules.
• Liquid Crystal & Electronic Materials: Potential use in the synthesis of sulfonated compounds for advanced material applications.
• Complexing Agent Precursor: Can be used to develop ligands and chelating agents for metal ion sequestration.

Basic Information

Product Name	5-Chloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid
CAS No.	104207-29-6
Molecular Formula	C8H9ClO4S
Molecular Weight	236.67 g/mol
Synonyms	4-Ethyl-5-chloro-2-hydroxybenzenesulfonic acid; 2-Hydroxy-5-chloro-4-ethylbenzenesulfonic acid; 5-Chloro-4-ethyl-2-phenolsulfonic acid; Benzenesulfonic acid, 5-chloro-4-ethyl-2-hydroxy-; 5-Chloro-4-ethylsalicylic acid sulfonic acid (related); 5-Chloro-4-ethyl-2-phenol sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 5-Chloro-4-Ethyl-2-Hydroxybenzenesulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including purity assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your quality assurance requirements.

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). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture. 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	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Chloride Content	Conforms to theoretical

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