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VAQORACHEMICALS
Organosilicon Compounds & SilanesPurissAvailable on request

Trimethylsilylacetylene, 98%

Synonyms: Ethynyltrimethylsilane · (Trimethylsilyl)acetylene · ethynyl-trimethyl-silane · Silane, ethynyltrimethyl-

CAS No.1066-54-2
FormulaC5H10Si
Mol. weight98.22
Catalogue No.VQ-011165
Purity98%
HSN29319000

Trimethylsilylacetylene (CAS 1066-54-2) – organosilicon compound, Puriss grade, 98%. C5H10Si, MW 98.22. Request a quote: COA, bulk packs and worldwide export.

Pack sizesPrice on quotation · bulk available
1 g
5 g
25 g
100 g
500 g
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Trimethylsilylacetylene, 98%

Vaqora Chemicals supplies Trimethylsilylacetylene in Puriss grade, an organosilicon compound registered under CAS number 1066-54-2 at a purity of 98%. Its molecular formula is C5H10Si and its molecular weight is 98.22 g/mol. Its systematic (IUPAC) name is ethynyl(trimethyl)silane. Alternative names: Ethynyltrimethylsilane and (Trimethylsilyl)acetylene.

In its supplied form it is a colourless liquid. Key physical data: a density of 0.709 g/cm3. Recommended storage is at 2–8 °C, with the container kept tightly sealed. It carries the GHS signal word “Danger” with 5 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 1 g, 5 g, 25 g and 100 g packs, Trimethylsilylacetylene is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

  • Organic synthesis
  • API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product nameTrimethylsilylacetylene, 98%
Catalogue No.VQ-011165
CAS Number1066-54-2
IUPAC nameethynyl(trimethyl)silane
Molecular formulaC5H10Si
Molecular weight98.22 g/mol
Exact mass98.0552
GradePuriss
Purity / assay98%
HSN code29319000
InChIKeyCWMFRHBXRUITQE-UHFFFAOYSA-N
SMILESC[Si](C)(C)C#C
PubChem CID66111
Physical properties
Physical formLiquid
AppearanceColourless liquid
Density0.709 g/cm3
H-bond donors / acceptors0 / 0
TPSA0 Ų
Storage2–8 °C
SynonymsEthynyltrimethylsilane, (Trimethylsilyl)acetylene, ethynyl-trimethyl-silane, Silane, ethynyltrimethyl-, trimethylsilyl acetylene, TMS-acetylene, trimethylsilylethyne, Trimethylethynylsilane, (Trimethylsilyl)ethyne, TMS acetylene, 1-(Trimethylsilyl)acetylene, trimethylsilanylethyne

Safety & hazard information (GHS)

GHS02 Flammable
Flammable
GHS05 Corrosive
Corrosive
GHS07 Harmful / irritant
Harmful / irritant

Signal word: Danger

Hazard statements

  • H225Highly flammable liquid and vapor
  • H315Causes skin irritation
  • H318Causes serious eye damage
  • 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, P305 + P354 + P338, P317, P319, P321, P332 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P233

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

Documents

Frequently asked questions

What is the CAS number of Trimethylsilylacetylene, 98%?

The CAS Registry Number of Trimethylsilylacetylene, 98% is 1066-54-2. It is also known as Ethynyltrimethylsilane, (Trimethylsilyl)acetylene, ethynyl-trimethyl-silane.

What is the molecular formula and molecular weight of Trimethylsilylacetylene, 98%?

Trimethylsilylacetylene, 98% has the molecular formula C5H10Si and a molecular weight of 98.22 g/mol. Its IUPAC name is ethynyl(trimethyl)silane.

Which grade and pack sizes of Trimethylsilylacetylene, 98% can I order?

We supply Trimethylsilylacetylene, 98% in Puriss (98%) grade, in 1 g, 5 g, 25 g, 100 g, 500 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Trimethylsilylacetylene, 98%?

Yes. Every lot of Trimethylsilylacetylene, 98% 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 Trimethylsilylacetylene, 98% be shipped internationally?

Yes. Trimethylsilylacetylene, 98% 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.

How should Trimethylsilylacetylene, 98% be stored?

2–8 °C. Keep the container tightly closed and refer to the SDS for full handling guidance.

Enquire about Trimethylsilylacetylene, 98%

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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