Description

4-[2-(4-Aminophenyl)Ethynyl]Aniline is a specialized aromatic diamine compound featuring a conjugated ethynyl bridge, which imparts unique electronic and structural properties. This compound is a critical high-purity intermediate for advanced material synthesis, where its rigid, linear structure and dual amine functionalities are essential. It is primarily required by pharmaceutical research, organic electronics, and polymer chemistry sectors for developing novel active ingredients, conductive polymers, and high-performance resins.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Organic Electronic Materials: Used in the development of organic semiconductors, hole-transport materials (HTMs), and non-linear optical (NLO) materials for OLEDs and photovoltaic cells.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for producing high-temperature resistant polyimides, polyamides, and other specialty engineering plastics.
• Ligand Synthesis: Employed in the preparation of sophisticated ligands for catalysis and metal-organic frameworks (MOFs).
• Dye and Pigment Manufacturing: A precursor for synthesizing advanced azo dyes and pigments with enhanced stability and color properties.
• Academic & Industrial R&D: A valuable reagent for research in material science, supramolecular chemistry, and chemical biology.

Basic Information

Product Name	4-[2-(4-Aminophenyl)Ethynyl]Aniline
CAS No.	6052-15-9
Molecular Formula	C14H12N2
Molecular Weight	208.26 g/mol
Synonyms	4,4'-Diaminodiphenylacetylene; 1-Amino-4-[(4-aminophenyl)ethynyl]benzene; 4-(2-(4-Aminophenyl)ethynyl)benzenamine; Bis(4-aminophenyl)acetylene; p,p'-Diaminodiphenylacetylene; 4-Ethynyl-4'-aminobiphenyl; 4-Aminophenylacetylene-4'-aniline; DAPA
EINECS	Contact for details

Quality Control

Our production of 4-[2-(4-Aminophenyl)Ethynyl]Aniline adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for sensitive applications. Each lot undergoes comprehensive analysis including HPLC purity assay, identity confirmation (IR, NMR), and control of key impurities. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, supporting compliance with cGMP and ISO 9001 standards where required.

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, sparks, and open flame. Due to its amine functionality and light-sensitive nature, prolonged exposure to air and light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	185 - 195 °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.