Description

1,1':4',1''-Terphenyl, 2',5'-Diethynyl- (9Ci) is a high-purity, specialized organic compound belonging to the terphenyl family, distinguished by its ethynyl functional groups. This compound matters as a critical building block and precursor in advanced materials science, offering a rigid, conjugated molecular framework essential for developing novel polymers and electronic components. It is primarily needed by researchers and manufacturers in the fields of organic electronics, liquid crystal displays (LCDs), and high-performance polymers seeking to innovate with tailored molecular architectures.

Application

• Organic Semiconductor Research: Serves as a key monomer or precursor for the synthesis of conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Liquid Crystal Materials: Used in the development of advanced liquid crystal mixtures for display technologies, where its rigid terphenyl core contributes to desired mesogenic properties.
• Polymer Chemistry: Acts as a building block for high-temperature and high-performance polymers, including poly(arylene ethynylene)s (PAEs), due to its ethynyl groups suitable for cross-coupling reactions.
• Coordination Chemistry & Catalysis: Functions as a ligand precursor or a backbone for constructing metal-organic frameworks (MOFs) and catalysts, leveraging its ability to coordinate with various metal centers.
• Fluorescent Dyes & Sensors: Employed in the synthesis of fluorescent probes and chemosensors, where the extended π-conjugation system enables tunable optical properties.
• Pharmaceutical Intermediates: May be utilized in the research and development of complex pharmaceutical compounds requiring a rigid, multi-ring structure.

Basic Information

Product Name	1,1':4',1''-Terphenyl, 2',5'-Diethynyl- (9Ci)
CAS No.	871248-64-5
Molecular Formula	C22H14
Molecular Weight	278.35 g/mol
Synonyms	2',5'-Diethynyl-1,1':4',1''-terphenyl; 2',5'-Diethynyl-[1,1':4',1'']terphenyl; 1,1':4',1''-Terphenyl, 2',5'-diethynyl-; 2,5-Diethynyl-p-terphenyl; p-Terphenyl-2',5'-diethynyl; [1,1':4',1'']Terphenyl-2',5'-diethynyl
EINECS	Contact for details

Quality Control

Our 1,1':4',1''-Terphenyl, 2',5'-Diethynyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flames. For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen to maintain stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.