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Bis(trimethylsilyl)acetylene, 99%, Thermo Scientific™

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Quantity:
10g
50g
250g
14630-40-1
C8H18Si2
170.402
MFCD00008276
ZDWYFWIBTZJGOR-UHFFFAOYSA-N
bis trimethylsilyl acetylene, silane, 1,2-ethynediylbis trimethyl, 1,2-bis trimethylsilyl ethyne, btmsa, 1,2-bis-trimethylsilanyl-ethyne, ethyne-1,2-diylbis trimethylsilane, 2,5-disilahex-3-yne, 2,2,5,5-tetramethyl, trimethyl 2-trimethylsilyl ethynyl silane, silane, 1,1'-1,2-ethynediyl bis 1,1,1-trimethyl
84564
trimethyl(2-trimethylsilylethynyl)silane
C[Si](C)(C)C#C[Si](C)(C)C
14630-40-1
C8H18Si2
170.402
MFCD00008276
ZDWYFWIBTZJGOR-UHFFFAOYSA-N
bis trimethylsilyl acetylene, silane, 1,2-ethynediylbis trimethyl, 1,2-bis trimethylsilyl ethyne, btmsa, 1,2-bis-trimethylsilanyl-ethyne, ethyne-1,2-diylbis trimethylsilane, 2,5-disilahex-3-yne, 2,2,5,5-tetramethyl, trimethyl 2-trimethylsilyl ethynyl silane, silane, 1,1'-1,2-ethynediyl bis 1,1,1-trimethyl
84564
trimethyl(2-trimethylsilylethynyl)silane
C[Si](C)(C)C#C[Si](C)(C)C

This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific.

Applications
BTMSA is used as starting reagent in the synthesis of functionalized 4-R-1,2-bis(trimethylsilyl)benzenes. It is also used in the synthesis of (+)-brasilenyne2 and (β-diketanato)Ag(BTMSA). Bis(trimethylsilyl)acetylene is a ligand that binds to a central metal ion (e.g. Titanium) to create a coordination complex. One of its complexes, Permethyltitanocene-bis(trimethylsilyl)acetylene, is a catalyst for the head-to-tail dimerization of 1-alkynes (e.g. 3-Penten-1-yne [P227430]).

Solubility
Not miscible or difficult to mix in water. Soluble in Chloroform and Methanol.

Notes
Store away from oxidizing agents. Do not store together with acids.
Density 0.77
Melting Point 20°C to 24°C
Boiling Point 134°C to 136°C
Flash Point 2°C (35°F)
Linear Formula (CH3)3SiC≡CSi(CH3)3
UN Number UN1993
Beilstein 906870
Refractive Index 1.427
Quantity 250g
Solubility Information Not miscible or difficult to mix in water. Soluble in Chloroform and Methanol.
Formula Weight 170.4
Percent Purity 99%
Chemical Name or Material Bis (trimethylsilyl)acetylene
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GHS H Statement
H226
Flammable liquid and vapor.

P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378q-P501c

H225

DOTInformation : Transport Hazard Class: 3; Packing Group: III; Proper Shipping Name: FLAMMABLE LIQUIDS, N.O.S.

EINECSNumber : 238-671-9

TSCA : Yes

Recommended Storage : Ambient temperatures

RUO – Research Use Only