Description

Benzenesulfonic Acid Phenyl Ester is a high-purity organic chemical intermediate of significant industrial importance. This compound serves as a versatile building block in advanced synthesis, valued for its role in creating more complex sulfonate esters and functional materials. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for research, development, and production processes.

Application

• Pharmaceutical Intermediate: Key starting material or precursor in the synthesis of active pharmaceutical ingredients (APIs) and specialty drug molecules.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the manufacture of specialty polymers, resins, and coatings to impart specific properties.
• Chemical Research & Development: Essential reagent in organic synthesis laboratories for method development and creating novel sulfonated compounds.
• Dye & Pigment Manufacturing: Intermediate in the production of certain sulfonated dyes and colorants.
• Lubricant & Fuel Additive Precursor: Used in the synthesis of performance-enhancing additives for industrial lubricants and fuels.

Basic Information

Product Name	Benzenesulfonic Acid Phenyl Ester
CAS No.	4358-63-8
Molecular Formula	C12H10O3S
Molecular Weight	234.27 g/mol
Synonyms	Phenyl benzenesulfonate; Diphenyl sulfonate; Benzenesulfonic acid, phenyl ester; Phenyl benzene-1-sulfonate; Sulfonic acid, phenyl phenyl ester; PPS (abbrev.); NSC 403107; Phenyl ester of benzenesulfonic acid
EINECS	224-447-7

Quality Control

Our Benzenesulfonic Acid Phenyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed-upon standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

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%
Residue on Ignition	≤ 0.1%

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