Description

(4-Ethynylphenyl)Trimethylsilane is a specialized organosilicon compound featuring a reactive ethynyl group protected by a trimethylsilyl moiety. This unique structure makes it a valuable building block and intermediate in advanced organic synthesis and materials science. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring alkyne functionalization for click chemistry or cross-coupling reactions.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and pesticides where the ethynylphenyl group is incorporated into the active molecule.
• Material Science Precursor: Acts as a monomer or cross-linking agent in the production of specialty polymers, resins, and silicon-based hybrid materials with tailored properties.
• Organic Electronics: Employed in the synthesis of conjugated molecules and polymers for applications in organic light-emitting diodes (OLEDs) and semiconductor materials.
• Ligand and Catalyst Development: Useful for preparing sophisticated ligands for transition metal catalysis or as a scaffold in organometallic chemistry.
• Surface Modification: Can be used to functionalize surfaces with ethynyl groups for subsequent grafting or immobilization of biomolecules or other functional units.

Basic Information

Product Name	(4-Ethynylphenyl)Trimethylsilane
CAS No.	16116-92-0
Molecular Formula	C11H14Si
Molecular Weight	174.31 g/mol
Synonyms	1-Ethynyl-4-(trimethylsilyl)benzene; 4-(Trimethylsilyl)phenylacetylene; p-(Trimethylsilyl)phenylacetylene; 4-Ethynyl-1-(trimethylsilyl)benzene; Trimethyl(4-ethynylphenyl)silane; (p-Ethynylphenyl)trimethylsilane; TMS-protected phenylacetylene; 4-((Trimethylsilyl)ethynyl)benzene (Note: This is a structural isomer, but a common misnomer)
EINECS	Contact for details

Quality Control

Our (4-Ethynylphenyl)Trimethylsilane is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Standard quality parameters include assay (by GC or HPLC), identity confirmation (by FT-IR or NMR), and control of key impurities. Certificates of Analysis (COA) documenting all test results are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place at room temperature (15-25°C). Due to its highly volatile nature, ensure containers are properly sealed and stored upright. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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