(Triethylsilyl)acetylene, 97%

About (Triethylsilyl)acetylene, 97%

(Triethylsilyl)acetylene is an organosilicon compound carrying the CAS registry number 1777-03-3 with a typical assay of 97%. Its molecular formula is C8H16Si and its molecular weight is 140.3 g/mol. Systematically, it is named triethyl(ethynyl)silane. Alternative names: Ethynyltriethylsilane and silane, triethylethynyl-.

The material typically appears as a clear colourless liquid. Reported physical data include a boiling point of 136 °C. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

Typical applications include organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 1 g, 5 g and 25 g packs, (Triethylsilyl)acetylene is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	(Triethylsilyl)acetylene, 97%
Catalogue No.	VQ-011090
CAS Number	1777-03-3
IUPAC name	triethyl(ethynyl)silane
Molecular formula	C₈H₁₆Si
Molecular weight	140.3 g/mol
Exact mass	140.1021
Purity / assay	97%
HSN code	29335990
InChIKey	FWSPXZXVNVQHIF-UHFFFAOYSA-N
SMILES	CC[Si](CC)(CC)C#C
PubChem CID	637947

Physical properties
Physical form	Liquid
Appearance	Clear colourless liquid
Boiling point	136 °C
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
Synonyms	Ethynyltriethylsilane, silane, triethylethynyl-, Triethylethynylsilane, Triethylsilylacetylene, (triethylsilyl) acetylene, Triethylsilyl acetylene, (Triethylsilyl)acetylene, 97%, TES-acetylene, Et3SiC identical withCH, (triethylsilyl)-acetylene

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H225Highly flammable liquid and vapor
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P264 + P265, P271, P280, P302 + P352, P303 + P361 + P353, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P233, P403 + P235, P405

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of (Triethylsilyl)acetylene, 97%?

The CAS Registry Number of (Triethylsilyl)acetylene, 97% is 1777-03-3. It is also known as Ethynyltriethylsilane, silane, triethylethynyl-, Triethylethynylsilane.

What is the molecular formula and molecular weight of (Triethylsilyl)acetylene, 97%?

(Triethylsilyl)acetylene, 97% has the molecular formula C8H16Si and a molecular weight of 140.3 g/mol. Its IUPAC name is triethyl(ethynyl)silane.

Which grade and pack sizes of (Triethylsilyl)acetylene, 97% can I order?

We supply (Triethylsilyl)acetylene, 97% in (97%) grade, in 1 g, 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with (Triethylsilyl)acetylene, 97%?

Yes. Every lot of (Triethylsilyl)acetylene, 97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can (Triethylsilyl)acetylene, 97% be shipped internationally?

Yes. (Triethylsilyl)acetylene, 97% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.