Description

4,4’-(1,4-Phenylenebis(Ethyne-2,1-Diyl))Dianiline is a high-purity aromatic diamine monomer featuring a rigid, linear structure with conjugated acetylene linkages. This compound is valued for its role as a critical building block in the synthesis of advanced polymers and organic electronic materials. It is essential for researchers and manufacturers in the fields of high-performance polyimides, polyamides, and thermally stable resins.

Application

• Polymer Synthesis: A key monomer for producing high-performance polyimides and polyamides with exceptional thermal stability and mechanical strength.
• Advanced Materials: Serves as a precursor for conjugated polymers and oligomers used in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Liquid Crystal Polymers (LCPs): Used in the development of rigid-rod polymer backbones for high-modulus LCPs.
• Pharmaceutical Intermediates: Employed in the research and synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Crosslinking Agent: Functions as a crosslinker in epoxy and other thermoset resin systems to enhance thermal and chemical resistance.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new materials with tailored electronic and optical properties.

Basic Information

Product Name	4,4’-(1,4-Phenylenebis(Ethyne-2,1-Diyl))Dianiline
CAS No.	246141-52-6
Molecular Formula	C22H16N2
Molecular Weight	308.38 g/mol
Synonyms	1,4-Bis(4-aminophenylethynyl)benzene; 4,4'-(1,4-Phenylenedi-2,1-ethynediyl)bis[benzenamine]; 4,4'-(1,4-Phenylene-bis-ethyne-2,1-diyl)dianiline; 4,4'-(1,4-Phenylenebis(ethyne-2,1-diyl))dibenzenamine; BAPEB; Bis(4-aminophenyl)ethynylbenzene; p-Bis(4-aminophenylethynyl)benzene
EINECS	Contact for details

Quality Control

Our 4,4’-(1,4-Phenylenebis(Ethyne-2,1-Diyl))Dianiline is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements for advanced material synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 nature, the container must be kept sealed to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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