Description

Disodium 3,3'-Disulfonate-4,4'-Difluorobenzophenone is a high-purity, functionalized benzophenone derivative, serving as a critical advanced intermediate in the synthesis of high-performance polymers and specialty chemicals. Its value lies in the unique combination of sulfonate groups for solubility and ionic character with fluorinated aromatic rings, imparting thermal stability and chemical resistance to final products. This compound is essential for manufacturers in the polymer, pharmaceutical, and advanced materials sectors seeking to develop products with enhanced durability and specific functional properties.

Application

• Key monomer for sulfonated poly(arylene ether sulfone) (SPAES) membranes used in fuel cells and water purification.
• Intermediate in the synthesis of specialty polyetherketones and polyethersulfones for high-temperature engineering plastics.
• Building block for ionic polymers and polyelectrolytes with applications in catalysis and conductive materials.
• Precursor for pharmaceutical intermediates requiring fluorinated, sulfonated aromatic structures.
• Modifier for surface-active agents and dyes to enhance water solubility and performance.
• Research and development chemical for novel materials in academic and industrial laboratories.

Basic Information

Product Name	Disodium 3,3'-Disulfonate-4,4'-Difluorobenzophenone
CAS No.	210531-45-6
Molecular Formula	C13H6F2Na2O8S2
Molecular Weight	462.28 g/mol
Synonyms	4,4'-Difluorobenzophenone-3,3'-disulfonic acid disodium salt; 3,3'-Disulfo-4,4'-difluorobenzophenone disodium salt; Bis(3-sodiosulfo-4-fluorophenyl)methanone; Disodium 4,4'-difluoro-3,3'-disulfobenzophenone; DFBS Disodium Salt; 4,4'-Difluoro-3,3'-disulfobenzophenone Disodium Salt; 3,3'-Disulfonato-4,4'-difluorobenzophenone Disodium Salt
EINECS	Contact for details

Quality Control

Our Disodium 3,3'-Disulfonate-4,4'-Difluorobenzophenone 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 specifications for use in sensitive applications like polymer synthesis. Certificates of Analysis (COA) documenting all critical parameters are provided to guarantee traceability and compliance with your quality requirements.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed in a dry environment to prevent absorption of moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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