Description

Phenylethynyl Trimethylsilane is a versatile organosilicon compound featuring a reactive ethynyl group protected by a trimethylsilyl moiety. This unique structure makes it a valuable synthetic building block and intermediate in advanced organic synthesis. It is primarily utilized by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing acetylene functionality.
• Agrochemical Synthesis: Used in creating novel pesticides and herbicides where the ethynyl group is integral to biological activity.
• Material Science Precursor: Serves as a monomer or cross-linking agent in the development of specialty polymers, resins, and silicon-based materials.
• Organic Synthesis Reagent: Employed in Sonogashira coupling and other palladium-catalyzed cross-coupling reactions to form carbon-carbon bonds.
• Ligand & Catalyst Development: Useful for synthesizing novel ligands and organometallic complexes for catalytic applications.
• Research & Development: A critical reagent in academic and industrial R&D labs for exploring new synthetic pathways and molecular entities.

Basic Information

Product Name	Phenylethynyl Trimethylsilane
CAS No.	217-06-1
Molecular Formula	C11H14Si
Molecular Weight	174.31 g/mol
Synonyms	Trimethyl(phenylethynyl)silane; (Phenylethynyl)trimethylsilane; Ethynylbenzene, trimethylsilyl-; TMS-phenylacetylene; (Trimethylsilyl)phenylacetylene; Phenyl(trimethylsilyl)acetylene; PTMSA; 1-Trimethylsilyl-2-phenylethyne
EINECS	Contact for details

Quality Control

Our Phenylethynyl Trimethylsilane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and FTIR, to ensure high chemical purity and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee batch-to-batch consistency and traceability for your R&D and production needs.

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). This compound is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

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.