Description

4,4'-Dibromo Diphenyl Sulfone is a high-purity brominated aromatic sulfone compound, serving as a critical advanced intermediate in specialty chemical synthesis. Its value lies in its unique molecular structure, which provides a versatile platform for constructing complex polymers and fine chemicals with enhanced thermal and chemical stability. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and high-performance polymer industries seeking reliable, high-quality building blocks.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfone-based drugs.
• Polymer Chemistry: Monomer for the production of high-performance engineering plastics, such as poly(ether sulfone)s (PES) and other specialty polymers requiring thermal and oxidative stability.
• Agrochemical Synthesis: Intermediate in the manufacture of advanced herbicides, fungicides, and other crop protection agents.
• Liquid Crystal Materials: Used in the synthesis of monomers for liquid crystal polymers (LCPs) and display materials.
• Flame Retardant Synergist: Acts as a reactive intermediate in the synthesis of brominated flame retardants for plastics and textiles.
• Cross-linking Agent: Utilized in the production of epoxy resins and other thermosetting polymers to enhance mechanical properties.
• Organic Synthesis Research: A versatile reagent for Suzuki coupling and other palladium-catalyzed cross-coupling reactions in academic and industrial R&D.

Basic Information

Product Name	4,4'-Dibromo Diphenyl Sulfone
CAS No.	2050-48-8
Molecular Formula	C12H8Br2O2S
Molecular Weight	376.06 g/mol
Synonyms	Bis(4-bromophenyl) sulfone; 4,4'-Dibromodiphenyl sulfone; 1-Bromo-4-[(4-bromophenyl)sulfonyl]benzene; NSC 403107; p,p'-Dibromodiphenylsulfone; 4-Bromophenyl sulfone; Diphenyl sulfone, 4,4'-dibromo-
EINECS	218-124-4

Quality Control

Our 4,4'-Dibromo Diphenyl Sulfone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the stringent requirements of our global customer base. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and compliance with relevant industry 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 and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	248°C - 252°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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