Description

3,3'-Diamino-4,4'-Dichlorodiphenyl Sulfone is a high-purity aromatic diamine derivative of sulfone, serving as a critical building block in advanced polymer synthesis. Its value lies in its dual functional amine groups and stable sulfone backbone, enabling the creation of materials with exceptional thermal stability and chemical resistance. This compound is essential for manufacturers in the high-performance polymer, specialty epoxy resin, and polyimide sectors, where it acts as a key monomer or curing agent.

Application

• Polyimide and Polyamide Synthesis: A fundamental monomer for producing high-temperature, high-strength engineering plastics used in aerospace and electronics.
• Epoxy Curing Agent: Imparts enhanced thermal stability, chemical resistance, and mechanical properties to advanced epoxy resin systems.
• High-Performance Fiber Production: Used in the synthesis of polymers for aramid-type fibers requiring superior strength and heat resistance.
• Pharmaceutical Intermediate: Serves as a precursor in the synthesis of certain specialty drug molecules and active pharmaceutical ingredients (APIs).
• Crosslinking Agent: For specialty coatings, adhesives, and composite materials that must perform in demanding environments.
• Research & Development: A valuable reagent in organic synthesis and material science research for developing novel polymers.

Basic Information

Product Name	3,3'-Diamino-4,4'-Dichlorodiphenyl Sulfone
CAS No.	40179-07-5
Molecular Formula	C12H10Cl2N2O2S
Molecular Weight	317.19 g/mol
Synonyms	3,3'-Diamino-4,4'-Dichlorodiphenylsulfone; 4,4'-Dichloro-3,3'-Diaminodiphenyl Sulfone; DADPS; 3,3'-DADPS; Bis(3-amino-4-chlorophenyl) Sulfone; 3,3'-Diamino-4,4'-Dichlorodiphenylsulphone; 4-Chloro-3-aminophenyl Sulfone derivative; 40179-07-5
EINECS	Contact for details

Quality Control

Our 3,3'-Diamino-4,4'-Dichlorodiphenyl Sulfone 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 exacting standards for polymer-grade intermediates. Certificates of Analysis (COA) detailing all specification parameters are provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Melting Point	168°C - 172°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.