Description

2,5-Diethynylaniline is a high-value aromatic amine building block featuring two terminal alkyne groups. This unique bifunctional structure makes it a critical intermediate for synthesizing advanced organic materials and complex molecular architectures. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for applications such as click chemistry, polymer cross-linking, and ligand synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly for targeted therapies.
• Click Chemistry Reagent: Used in copper-catalyzed azide-alkyne cycloaddition (CuAAC) and other click reactions for efficient, modular synthesis of complex molecules.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating conductive polymers, dendrimers, and high-performance resins with tailored thermal and mechanical properties.
• Agrochemical Synthesis: Employed in the development of novel herbicides, fungicides, and plant growth regulators.
• Ligand & Catalyst Development: Useful for constructing sophisticated chelating ligands and organometallic catalysts used in asymmetric synthesis.
• Organic Electronic Materials: A building block for organic semiconductors, light-emitting diodes (OLEDs), and other optoelectronic components.

Basic Information

Product Name	2,5-Diethynylaniline
CAS No.	137000-70-5
Molecular Formula	C10H7N
Molecular Weight	141.17 g/mol
Synonyms	2,5-Diethynylbenzenamine; 1-Amino-2,5-diethynylbenzene; 2,5-Bis(ethynyl)aniline; Benzenamine, 2,5-diethynyl-; 2,5-Diethynylphenylamine
EINECS	Contact for details

Quality Control

Our 2,5-Diethynylaniline is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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