Description

2,4'-Diamino[Sulfonylbisbenzene] (CAS NO 27147-69-9) is a high-purity aromatic sulfone derivative of significant industrial importance. This compound serves as a versatile and critical building block in advanced organic synthesis, enabling the production of high-performance materials. It is essential for manufacturers in the polymer, specialty chemical, and pharmaceutical intermediate sectors seeking to develop products with enhanced thermal stability and chemical resistance.

Application

• Polymer Synthesis: A key monomer for the production of high-performance polyethersulfones (PES) and polysulfones, valued for their thermal stability and mechanical strength.
• Pharmaceutical Intermediates: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Agrochemical Manufacturing: Used in the development of advanced herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Production: Acts as an intermediate for synthesizing high-grade, color-fast dyes and organic pigments.
• Advanced Material Research: Employed in R&D for creating novel materials with specific optical, electronic, or mechanical properties.
• Cross-linking Agent: Functions as a cross-linker in epoxy resin systems and other thermosetting polymers to improve performance.

Basic Information

Product Name	2,4'-Diamino[Sulfonylbisbenzene]
CAS No.	27147-69-9
Molecular Formula	C12H12N2O2S
Molecular Weight	248.30 g/mol
Synonyms	4,4'-Sulfonyldianiline; 4-Aminophenyl sulfone; Bis(4-aminophenyl) sulfone; Dapsone; DDS; 4,4'-Diaminodiphenyl sulfone; 1,1'-Sulfonylbis(4-aminobenzene); 4,4'-Sulfonylbisbenzenamine
EINECS	Contact for details

Quality Control

Our 2,4'-Diamino[Sulfonylbisbenzene] is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. We provide comprehensive quality assurance, with products typically meeting purity specifications of ≥99.0% (HPLC). A detailed Certificate of Analysis (COA), documenting identity, purity, and impurity profiles, is supplied with every shipment to support your quality protocols.

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). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 99.0 %
Melting Point	175 - 178 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm

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