Description

Benzenesulfonic Acid, 2-Ethyl-5-Hydroxy- (9Ci) is a specialized organic sulfonic acid derivative, valued for its unique combination of acidic and phenolic functionalities. This compound serves as a versatile intermediate and building block in advanced chemical synthesis, enabling the creation of complex molecules with tailored properties. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring sulfonate or phenolic moieties.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Acts as an intermediate for creating sulfonated azo dyes and other colorants with enhanced solubility and fastness properties.
• Polymer Modification: Employed to introduce sulfonic acid groups into polymers, improving characteristics like hydrophilicity, ion-exchange capacity, or adhesion.
• Chemical Research & Development: A valuable reagent for organic synthesis and methodology development in academic and industrial R&D laboratories.
• Catalyst and Ligand Precursor: Can be utilized to develop metal-complexing agents or acidic catalysts for specialized chemical reactions.

Basic Information

Product Name	Benzenesulfonic Acid, 2-Ethyl-5-Hydroxy- (9Ci)
CAS No.	764592-93-0
Molecular Formula	C8H10O4S
Molecular Weight	202.23 g/mol
Synonyms	2-Ethyl-5-hydroxybenzenesulfonic acid; 5-Hydroxy-2-ethylbenzenesulfonic acid; 2-Ethyl-5-hydroxybenzene-1-sulfonic acid; 1-Hydroxy-4-ethyl-3-sulfobenzene; 4-Ethyl-3-sulfophenol; 2-Ethyl-5-phenolsulfonic acid; 5-Ethyl-2-sulfophenol
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 2-Ethyl-5-Hydroxy- (9Ci) is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications and test results is provided with each shipment and is available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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