Description

2,2'-Dicarboxydiphenylsulphone is a high-purity aromatic sulfone derivative characterized by its two carboxylic acid functional groups. This compound serves as a critical advanced intermediate and building block in the synthesis of high-performance polymers and specialty chemicals. It is essential for manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require precise molecular architecture for their end products.

Application

• Polymer Synthesis: A key monomer for producing high-temperature resistant poly(arylene ether sulfone)s (PAES) and other specialty engineering plastics.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) requiring a rigid, sulfone-based backbone.
• Agrochemicals: Serves as a precursor for novel herbicides and fungicides, leveraging its structural stability.
• Liquid Crystal Polymers (LCPs): Acts as a difunctional monomer to enhance the thermal and mechanical properties of LCPs.
• Crosslinking Agent: Utilized in epoxy resin systems and other thermosetting polymers to improve heat resistance.
• Dye & Pigment Manufacturing: Functions as an intermediate for creating heat-stable and light-fast colorants.
• Research & Development: Employed in academic and industrial R&D for developing new materials with specific functional properties.
• Adhesives & Coatings: Incorporated into formulations requiring enhanced chemical resistance and durability.

Basic Information

Product Name	2,2'-Dicarboxydiphenylsulphone
CAS No.	22219-00-7
Molecular Formula	C14H10O6S
Molecular Weight	306.29 g/mol
Synonyms	2,2'-Bis(carboxyphenyl) sulfone; Diphenylsulfone-2,2'-dicarboxylic acid; 2,2'-Sulfonyldibenzoic acid; 2-Carboxybenzenesulfonic acid, 2'-carboxyphenyl ester; Bis(2-carboxyphenyl) sulfone; [1,1'-Sulfonylbis(2,1-phenylene)]diacetic acid (tautomer); DCPS; Contact for EINECS details.

Quality Control

Our 2,2'-Dicarboxydiphenylsulphone is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets exacting specifications. Certificates of Analysis (COA) detailing all test results are provided to guarantee traceability and batch-to-batch consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	285 - 295 °C
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH Q3C guidelines

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