Description

Benzenesulfonic Acid, o-Chloro-Phenyl Ester is a specialized organosulfur compound that serves as a versatile chemical intermediate and functional additive. Its value lies in its ability to act as a sulfonating agent and a building block for synthesizing more complex molecules, particularly in fine chemical and agrochemical production. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and polymer industries seeking to introduce specific functional groups or modify compound properties.

Application

• Agrochemical Intermediate: Key precursor in the synthesis of advanced herbicides, fungicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block and sulfonating agent in the development of active pharmaceutical ingredients (APIs).
• Polymer Modification: Acts as a functional monomer or cross-linking agent to impart specific properties like flame retardancy or thermal stability to polymers.
• Dye and Pigment Manufacturing: Intermediate in the production of sulfonated dyes and specialty colorants.
• Lubricant and Fuel Additive: Component in the formulation of extreme pressure additives and detergent dispersants.
• Research & Development: Valuable reagent in organic synthesis laboratories for introducing sulfonate ester groups.

Basic Information

Product Name	Benzenesulfonic Acid, o-Chloro-Phenyl Ester
CAS No.	13659-19-3
Molecular Formula	C12H9ClO3S
Molecular Weight	268.72 g/mol
Synonyms	2-Chlorophenyl benzenesulfonate; o-Chlorophenyl benzenesulfonate; Phenyl 2-chlorophenyl sulfonate; Benzenesulfonic acid 2-chlorophenyl ester; 2-Chlorophenyl phenyl sulfonate; NSC 403107; (2-Chlorophenoxy)benzene sulfonate
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, o-Chloro-Phenyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is 15-25°C. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Contact for details

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