Description

Phenyl p-Tolyl Sulfone CAS NO 640-57-3 is a high-purity diaryl sulfone compound characterized by its robust chemical structure and excellent thermal stability. This chemical serves as a versatile intermediate and functional additive, valued for its role in enhancing material properties and facilitating complex organic syntheses. It is essential for manufacturers and R&D laboratories in the polymer, agrochemical, and pharmaceutical sectors seeking reliable performance and consistent quality.

Application

• Polymer Industry: Used as a high-temperature plasticizer, stabilizer, and monomer in the production of specialty engineering plastics and high-performance polymers like polysulfones and polyethersulfones.
• Pharmaceutical Intermediates: Acts as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and other biologically active molecules.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of advanced herbicides, fungicides, and pesticides.
• Chemical Research: Employed as a standard or reagent in organic synthesis and material science research for developing new compounds.
• Electronics Materials: Utilized in the formulation of specialty resins and coatings for electronic applications requiring thermal and chemical resistance.
• Dye and Pigment Manufacturing: Functions as an intermediate in the synthesis of certain dyes and organic pigments.

Basic Information

Product Name	Phenyl p-Tolyl Sulfone
CAS No.	640-57-3
Molecular Formula	C13H12O2S
Molecular Weight	232.30 g/mol
Synonyms	4-Methylphenyl phenyl sulfone; p-Tolyl phenyl sulfone; 1-Methyl-4-(phenylsulfonyl)benzene; (4-Methylphenyl)(phenyl)sulfone; Sulfonylbis(4-methylbenzene) (related); Bis(4-methylphenyl) sulfone (related); Diphenyl sulfone derivative
EINECS	211-381-4

Quality Control

Our Phenyl p-Tolyl Sulfone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, purity profiling, and identification, to ensure it meets stringent specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance with your requirements.

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.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	124 - 128 °C
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.