Description

4-Phenylethynyl)Phenylethynyl Trimethylsilane is a specialized organosilicon compound featuring a conjugated phenylethynyl system protected by a trimethylsilyl group. This unique structure makes it a valuable advanced intermediate for synthesizing complex organic materials and functional polymers. It is primarily utilized by R&D chemists and material scientists in the pharmaceutical, agrochemical, and advanced electronics sectors for constructing molecular architectures requiring precise control over conjugation and reactivity.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring rigid, conjugated backbones.
• Agrochemical Synthesis: Used in the research and development of novel pesticides and herbicides, where its structural motif can contribute to specific biological activity.
• Material Science Research: Acts as a precursor for organic semiconductors, liquid crystals, and other functional materials where extended π-conjugation is essential for electronic or optical properties.
• Cross-Coupling Reactions: An important substrate in Sonogashira and other palladium-catalyzed cross-coupling reactions to create complex alkynyl-linked structures.
• Polymer Chemistry: Employed as a monomer or co-monomer in the development of specialty polymers with tailored thermal stability and optoelectronic characteristics.
• Organic Synthesis Reagent: Functions as a protected alkyne synthon, allowing for selective deprotection and further functionalization in multi-step synthetic routes.

Basic Information

Product Name	4-Phenylethynyl)Phenylethynyl Trimethylsilane
CAS No.	147492-76-0
Molecular Formula	C19H18Si
Molecular Weight	274.43 g/mol
Synonyms	1-((4-((Trimethylsilyl)ethynyl)phenyl)ethynyl)benzene; 1,1'-(1,4-Phenylene)bis[2-(trimethylsilyl)acetylene]; 4-((Trimethylsilyl)ethynyl)phenylacetylene; 4-Ethynylphenyl Trimethylsilylacetylene; Bis(trimethylsilylethynyl)benzene (isomeric); p-Bis((trimethylsilyl)ethynyl)benzene; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 4-Phenylethynyl)Phenylethynyl Trimethylsilane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality systems are designed to support cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive). For long-term storage, consider using an inert atmosphere or desiccant to maintain product integrity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
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.