Bis(trimethylsilyl)acetylene, 99%

Name: Bis(trimethylsilyl)acetylene, 99%
Brand: Vaqora Chemicals
SKU: VQ-011111

About Bis(trimethylsilyl)acetylene, 99%

Listed under CAS 14630-40-1, Bis(trimethylsilyl)acetylene is an organosilicon compound available from Vaqora Chemicals, specified at 99% purity. The compound has the formula C8H18Si2, corresponding to a molecular weight of 170.4 g/mol. Systematically, it is named trimethyl(2-trimethylsilylethynyl)silane. Common synonyms include BTMSA and Silane, 1,2-ethynediylbis[trimethyl-.

It is supplied as a colourless or white solid to liquid. Reported physical data include a melting point of 21-24 °C. Keep the material at 2–8 °C and protect it from moisture. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 g, 50 g and 1 kg packs, Bis(trimethylsilyl)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	Bis(trimethylsilyl)acetylene, 99%
Catalogue No.	VQ-011111
CAS Number	14630-40-1
IUPAC name	trimethyl(2-trimethylsilylethynyl)silane
Molecular formula	C₈H₁₈Si₂
Molecular weight	170.4 g/mol
Exact mass	170.0947
Purity / assay	99%
HSN code	29319090
InChIKey	ZDWYFWIBTZJGOR-UHFFFAOYSA-N
SMILES	C[Si](C)(C)C#C[Si](C)(C)C
PubChem CID	84564

Physical properties
Physical form	Liquid
Appearance	Colourless or white solid to liquid
Melting point	21-24 °C
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
Storage	2–8 °C
Synonyms	BTMSA, Silane, 1,2-ethynediylbis[trimethyl-, ethyne-1,2-diylbis(trimethylsilane), Silane, 1,1'-(1,2-ethynediyl)bis[1,1,1-trimethyl-, Silane, 1,2-ethynediylbis(trimethyl-, Silane, 1,1'-(1,2-ethynediyl)bis(1,1,1-trimethyl-, Silane, 1,2ethynediylbis(trimethyl, Silane, 1,1'(1,2ethynediyl)bis(1,1,1trimethyl, 1,2-Bis(trimethylsilyl)ethyne, 1,2-bis-trimethylsilanyl-ethyne, trimethyl[2-(trimethylsilyl)ethynyl]silane, 2,5-Disilahex-3-yne, 2,2,5,5-tetramethyl-

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H225Highly flammable liquid and vapor
H226Flammable 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 Bis(trimethylsilyl)acetylene, 99%?

The CAS Registry Number of Bis(trimethylsilyl)acetylene, 99% is 14630-40-1. It is also known as BTMSA, Silane, 1,2-ethynediylbis[trimethyl-, ethyne-1,2-diylbis(trimethylsilane).

What is the molecular formula and molecular weight of Bis(trimethylsilyl)acetylene, 99%?

Bis(trimethylsilyl)acetylene, 99% has the molecular formula C8H18Si2 and a molecular weight of 170.4 g/mol. Its IUPAC name is trimethyl(2-trimethylsilylethynyl)silane.

Which grade and pack sizes of Bis(trimethylsilyl)acetylene, 99% can I order?

We supply Bis(trimethylsilyl)acetylene, 99% in (99%) grade, in 10 g, 50 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Bis(trimethylsilyl)acetylene, 99%?

Yes. Every lot of Bis(trimethylsilyl)acetylene, 99% 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 Bis(trimethylsilyl)acetylene, 99% be shipped internationally?

Yes. Bis(trimethylsilyl)acetylene, 99% 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 Bis(trimethylsilyl)acetylene, 99% be stored?

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