Description

4,4'-Biphenyldisulfonyl Chloride is a high-purity, bifunctional aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual reactive sites, enabling the construction of complex molecular architectures, particularly for high-performance polymers and functional materials. This compound is essential for R&D and production chemists in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel sulfonamides, dyes, or polymeric materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of biologically active sulfonamide compounds and active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Monomer for the production of high-performance polyethersulfones (PES), polysulfones, and other engineering plastics with excellent thermal and chemical stability.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators containing sulfonyl groups.
• Dye and Pigment Manufacturing: Used in the synthesis of sulfonated dyes and optical brighteners.
• Cross-linking Agent: Employed in the modification of polymers and resins to introduce sulfonyl bridges, enhancing material properties.
• Liquid Crystal & OLED Materials: Intermediate in the development of sulfone-based compounds for electronic display applications.
• Research & Development: Versatile reagent in academic and industrial labs for exploring new organic reactions and material science.

Basic Information

Product Name	4,4'-Biphenyldisulfonyl Chloride
CAS No.	3406-84-6
Molecular Formula	C12H8Cl2O4S2
Molecular Weight	359.22 g/mol
Synonyms	[4,4'-Biphenyl]disulfonyl Dichloride; 4,4'-Disulfonylchloridebiphenyl; p,p'-Biphenyldisulfonyl Chloride; Biphenyl-4,4'-disulfonyl Chloride; 4,4'-Sulfonyldibenzenesulfonyl Chloride; 1,1'-Biphenyl-4,4'-disulfonyl Dichloride; NSC 403107
EINECS	222-300-7

Quality Control

Every batch of 4,4'-Biphenyldisulfonyl Chloride is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for sensitive synthetic applications. A detailed Certificate of Analysis (COA) is available for each lot, confirming identity, purity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent hydrolysis. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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