Description

Dichloro Bisphenol S is a halogenated derivative of bisphenol S, a high-performance chemical intermediate valued for its enhanced thermal stability and chemical resistance. This compound is critical for synthesizing advanced polymers and specialty chemicals where superior performance under demanding conditions is required. It is primarily sought by manufacturers in the polymer, epoxy resin, and flame-retardant additive industries for developing next-generation materials.

Application

• Polymer Modification: As a key monomer for producing high-temperature resistant polyethersulfones (PES) and polysulfones (PSU).
• Epoxy Resin Systems: Used to formulate advanced epoxy resins with improved thermal and chemical properties for coatings, adhesives, and composites.
• Flame Retardant Synergist: Incorporated into polymer blends and coatings to enhance flame retardancy and meet stringent safety standards.
• Specialty Chemical Synthesis: Serves as a versatile building block for pharmaceuticals, agrochemicals, and dyes.
• Engineering Plastics: A critical component in the production of high-performance thermoplastics for automotive and aerospace applications.
• Cross-linking Agent: Used to increase the cross-link density and durability of various polymer networks.

Basic Information

Product Name	Dichloro Bisphenol S
CAS No.	2148928-89-4
Molecular Formula	C12H8Cl2O4S
Molecular Weight	319.16 g/mol
Synonyms	4,4'-Sulfonylbis(2,6-dichlorophenol); Bis(3,5-dichloro-4-hydroxyphenyl) sulfone; 2,2'-Dichlorobisphenol S; DCBPS; Dichlorodiphenylsulfone bisphenol; Tetrachlorobisphenol S derivative
EINECS	Contact for details

Quality Control

Our Dichloro Bisphenol S is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and high-grade applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 oxidizers and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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