Description

4,4''-Diethynyl-3',4',5',6'-Tetrakis(4-Ethynylphenyl)-1,1':2',1''-Terphenyl is a high-purity, multi-functional organic building block characterized by its extended conjugated system and multiple reactive ethynyl termini. This compound is of significant value for advanced materials research and development, enabling the synthesis of complex, rigid molecular architectures. It is primarily sought by R&D teams and process engineers in the fields of organic electronics, polymer science, and nanotechnology for creating novel polymers, dendrimers, and cross-linked networks with tailored electronic and mechanical properties.

Application

• Advanced Polymer Synthesis: Serves as a critical monomer or cross-linking agent for the production of high-performance, thermally stable, and rigid-rod polymers.
• Organic Electronic Materials: Used in the development of organic semiconductors, conductive polymers, and materials for OLED (Organic Light-Emitting Diode) and OFET (Organic Field-Effect Transistor) applications due to its extended π-conjugation.
• Metal-Organic Frameworks (MOFs) & Covalent Organic Frameworks (COFs): Acts as a versatile organic linker or strut for constructing porous framework materials with specific pore geometries and functionalities.
• Dendrimer and Hyperbranched Polymer Construction: The multiple ethynyl groups allow for controlled, iterative growth in the synthesis of precisely defined dendritic structures.
• Surface Modification and Nanocomposites: Can be grafted onto surfaces or nanoparticles to modify interfacial properties and create reinforced composite materials.
• Click Chemistry Substrate: The terminal alkyne groups are highly reactive in copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, a cornerstone of modular "click" chemistry for bioconjugation and material science.
• Photoresists and Lithography: Potential use in formulating advanced photoresist materials for micro- and nano-fabrication processes.

Basic Information

Product Name	4,4''-Diethynyl-3',4',5',6'-Tetrakis(4-Ethynylphenyl)-1,1':2',1''-Terphenyl
CAS No.	252238-71-4
Molecular Formula	C58H34
Molecular Weight	730.89 g/mol
Synonyms	1,1':2',1''-Terphenyl, 4,4''-diethynyl-3',4',5',6'-tetrakis(4-ethynylphenyl)-; 4,4''-Diethynyl-3',4',5',6'-tetrakis[(4-ethynyl)phenyl]-1,1':2',1''-terphenyl; Multi-ethynyl terphenyl derivative; Hexa-ethynyl terphenyl; Extended terphenyl acetylene monomer; Conjugated terphenyl building block
EINECS	Contact for details

Quality Control

Our 4,4''-Diethynyl-3',4',5',6'-Tetrakis(4-Ethynylphenyl)-1,1':2',1''-Terphenyl is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity, essential for sensitive R&D and scale-up processes. Each lot undergoes comprehensive analytical characterization, including HPLC for purity assessment and NMR for structural confirmation. A detailed Certificate of Analysis (COA) documenting identity, purity, and relevant physical data is provided with every shipment to support your quality assurance requirements.

Storage

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

Specification

Item	Specification
Appearance	Yellow to light brown powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Area %)
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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