Description

(Triethylsilyl)Acetylene is a versatile organosilicon building block featuring a terminal alkyne group protected by a triethylsilyl moiety. This compound matters as a critical reagent in modern synthetic chemistry, enabling precise carbon-carbon bond formation and serving as a protected acetylene synthon. Industries such as pharmaceuticals, agrochemicals, and advanced materials need it for constructing complex molecular architectures, including active pharmaceutical ingredients (APIs) and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) via Sonogashira and other cross-coupling reactions.
• Agrochemical Synthesis: Used in creating advanced pesticides and herbicides that require specific alkyne-functionalized structures.
• Material Science: Monomer or precursor for silicon-containing polymers, dendrimers, and other advanced materials with tailored properties.
• Organic Synthesis Reagent: Acts as a protected acetylene equivalent in multi-step synthetic sequences, including the synthesis of natural products and fine chemicals.
• Ligand & Catalyst Development: Employed in the preparation of specialized ligands and organometallic catalysts for asymmetric synthesis.
• Chemical Research: Fundamental reagent in academic and industrial R&D for exploring new synthetic methodologies and reaction pathways.

Basic Information

Product Name	(Triethylsilyl)Acetylene
CAS No.	1777-03-3
Molecular Formula	C8H16Si
Molecular Weight	140.30 g/mol
Synonyms	Triethylsilylacetylene; Ethynyltriethylsilane; Triethyl(ethynyl)silane; TES-Acetylene; Silane, ethynyltriethyl-; 1-(Triethylsilyl)ethyne; (Triethylsilyl)ethyne; Triethylsilyl acetylene
EINECS	217-215-1

Quality Control

Our (Triethylsilyl)Acetylene is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, keep containers tightly sealed when not in use. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%

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