Description

1,3-Diethynylbenzene is a high-purity aromatic building block featuring two reactive ethynyl groups, enabling advanced cross-coupling and polymerization reactions. This compound is essential for synthesizing rigid-rod polymers, conductive materials, and complex molecular architectures. It is a critical raw material for researchers and manufacturers in the fields of advanced polymers, organic electronics, and specialty chemical synthesis.

Application

• Advanced Polymer Synthesis: Key monomer for producing poly(phenylene ethynylene)s (PPEs) and other rigid-rod polymers with high thermal stability.
• Organic Electronic Materials: Building block for organic semiconductors, light-emitting diodes (OLEDs), and photovoltaic materials.
• Metal-Organic Frameworks (MOFs): Used as a linker to create porous, crystalline materials for gas storage and catalysis.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of complex bioactive molecules and drug candidates.
• Cross-Coupling Reactions: A versatile substrate in Sonogashira, Heck, and other palladium-catalyzed coupling reactions.
• Specialty Chemical Research: Fundamental reagent in academic and industrial R&D for developing new materials and chemical processes.

Basic Information

Product Name	1,3-Diethynylbenzene
CAS No.	1785-61-1
Molecular Formula	C10H6
Molecular Weight	126.16 g/mol
Synonyms	m-Diethynylbenzene; 1,3-Bis(ethynyl)benzene; 3-Ethynylphenylacetylene; Benzene, 1,3-diethynyl-; m-Bis(ethynyl)benzene; 1,3-Diethynyl-benzene
EINECS	217-235-4

Quality Control

Our 1,3-Diethynylbenzene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at room temperature (15-25°C) in a cool, dry, and well-ventilated area. This material is light-sensitive and easily oxidized; prolonged exposure to air and light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	65 - 70 °C

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