Description

Chloro Bisphenol S is a halogenated derivative of bisphenol S, serving as a key chemical intermediate with enhanced reactivity and thermal stability. This compound is valued for its role in synthesizing high-performance polymers and specialty chemicals where improved flame retardancy and chemical resistance are required. It is primarily utilized by manufacturers in the polymer, epoxy resin, and advanced material sectors seeking to modify material properties for demanding applications.

Application

• Polymer Modification: Acts as a monomer or co-monomer in the synthesis of polyesters, polycarbonates, and polysulfones to enhance thermal stability and flame retardancy.
• Epoxy Resin Systems: Used as a curing agent or hardener component to improve the chemical resistance and mechanical strength of epoxy formulations for coatings and composites.
• Flame Retardant Additives: Incorporated as a reactive intermediate in the production of halogenated flame retardants for plastics and textiles.
• Specialty Chemical Synthesis: Serves as a versatile building block for agrochemicals, pharmaceuticals, and dyes, leveraging the reactivity of the chloro and sulfone groups.
• High-Temperature Polymers: A key precursor in manufacturing polyethersulfones (PES) and other engineering plastics that require excellent thermal and oxidative stability.
• Adhesives and Sealants: Used to formulate high-performance adhesives with improved durability and resistance to environmental stressors.

Basic Information

Product Name	Chloro Bisphenol S
CAS No.	80396-77-6
Molecular Formula	C12H8Cl2O4S
Molecular Weight	319.16 g/mol
Synonyms	4,4'-Sulfonylbis(2-chlorophenol); Bis(4-hydroxy-3-chlorophenyl) sulfone; 2,2'-Dichlorodiphenyl sulfone-4,4'-diol; Dichlorobisphenol S; 4,4'-Dihydroxy-3,3'-dichlorodiphenyl sulfone; BPS-CI; Tetrachlorobisphenol S derivative
EINECS	Contact for details

Quality Control

Our Chloro Bisphenol S is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and bases. The material may be light-sensitive; prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	215°C - 225°C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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