Description

2,5-Diethynylbenzene-1,4-Diamine is a high-purity, functionalized aromatic diamine building block characterized by its dual ethynyl and amine groups. This unique molecular structure makes it a critical precursor for advanced materials synthesis, particularly in the development of conjugated polymers and thermally stable resins. It is essential for R&D and production in sectors demanding high-performance organic frameworks, such as specialty polymers, electronic materials, and pharmaceutical intermediates. The compound, identified by CAS number 1141727-54-9, offers precise functionality for creating tailored molecular architectures.

Application

• Polymer Chemistry: Key monomer for synthesizing conjugated polymers with tailored electronic properties for organic semiconductors and conductive materials.
• Pharmaceutical Intermediates: Serves as a versatile building block in the synthesis of complex active pharmaceutical ingredients (APIs) and drug candidates.
• Material Science: Used in the development of high-performance, cross-linked polymers and resins with enhanced thermal and mechanical stability.
• Organic Synthesis: A valuable precursor for creating complex organic molecules via Sonogashira coupling and other cross-coupling reactions.
• Research & Development: Essential compound in academic and industrial R&D for exploring new organic electronic devices and advanced material properties.
• Coordination Chemistry: Potential ligand for metal-organic frameworks (MOFs) and coordination polymers due to its amine and alkyne functional groups.

Basic Information

Product Name	2,5-Diethynylbenzene-1,4-Diamine
CAS No.	1141727-54-9
Molecular Formula	C10H8N2
Molecular Weight	156.19 g/mol
Synonyms	1,4-Diamino-2,5-diethynylbenzene; 2,5-Diethynyl-1,4-benzenediamine; 2,5-Diethynyl-p-phenylenediamine; 1,4-Benzenediamine, 2,5-diethynyl-; p-Phenylenediamine, 2,5-diethynyl-; 2,5-Bis(ethynyl)benzene-1,4-diamine
EINECS	Contact for details

Quality Control

Our 2,5-Diethynylbenzene-1,4-Diamine is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and GC-MS to verify identity, potency, and impurity profiles. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality management system is designed to meet the stringent requirements of research and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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