Description

Diphenyl Sulfone is a high-purity, versatile organic compound widely used as a key intermediate and performance additive in advanced manufacturing. Its stable sulfone structure makes it an essential building block for high-temperature polymers and specialty chemicals. This product is critical for manufacturers in the plastics, agrochemical, and pharmaceutical industries seeking reliable quality and consistent supply for their synthesis processes.

Application

• Polymer Intermediate: A crucial monomer for the synthesis of high-performance polysulfone (PSU) and polyethersulfone (PES) resins, which are used in medical devices, automotive components, and filtration membranes.
• Pharmaceutical Synthesis: Serves as a key intermediate in the production of various sulfa drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the synthesis of certain herbicides and fungicides, contributing to crop protection solutions.
• Dye and Pigment Production: Acts as an intermediate in the manufacture of specific dyes and organic pigments.
• Chemical Research & Development: Employed as a standard or reagent in organic synthesis and material science research.
• High-Temperature Solvent: Utilized in specialized applications as a solvent with high thermal stability.

Basic Information

Product Name	Diphenyl Sulfone
CAS No.	127-63-9
Molecular Formula	C12H10O2S
Molecular Weight	218.27 g/mol
Synonyms	1,1'-Sulfonylbisbenzene; Phenyl Sulfone; Benzene, 1,1'-sulfonylbis-; DPS; Sulfonylbisbenzene; Diphenylsulfone; Bis(phenyl) sulfone; NSC 6221
EINECS	204-853-1

Quality Control

Our Diphenyl Sulfone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high-purity standards required for industrial and fine chemical applications. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming specifications for identity, assay, and impurity profiles.

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
Assay (HPLC)	≥ 99.0%
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.