1,4-Bis(trimethylsilyl)butadiyne , 98% , 4526-07-2

Synonym(s):
1,4-Bis(trimethylsilyl)-1,3-butadiyne;BTMSBD

CAS NO.：4526-07-2

Empirical Formula: C10H18Si2

Molecular Weight: 194.42

MDL number: MFCD00009839

EINECS: 629-258-8

PRODUCT Properties

• Melting point: 111-113 °C(lit.)
• Boiling point: 197.7±23.0 °C(Predicted)
• Density: 0.974 g/mL at 20 °C(lit.)
• refractive index: n20/D 1.384(lit.)
• Flash point: >45°C
• storage temp.: 2-8°C
• form: solid
• color: White to Light yellow to Light orange
• Water Solubility: Insoluble in water.
• Hydrolytic Sensitivity: 4: no reaction with water under neutral conditions
• BRN: 1758268
• InChI: InChI=1S/C10H18Si2/c1-11(2,3)9-7-8-10-12(4,5)6/h1-6H3
• InChIKey: LBNVCJHJRYJVPK-UHFFFAOYSA-N
• SMILES: C([Si](C)(C)C)#CC#C[Si](C)(C)C
• CAS DataBase Reference: 4526-07-2(CAS DataBase Reference)

Description and Uses

1,4-Bis(trimethylsilyl)butadiyne can be used as a reagent to prepare:

• 1,1,3,4-Tetrasilyl-substituted 1,3-butadienes or 1,1,3,4-tetrasilyl-substituted 1,2-butadienes by hydrosilylation reaction using various hydridosilanes and catalysts.
• Glycosylated oligo(ethynylene)s using the Negishi reaction.
• (±) Falcarinol, a polyacetylene class of fatty alcohol.

Safety

• Symbol(GHS): GHS02
• Signal word: Danger
• Hazard statements: H228
• Precautionary statements: P210
• PPE: Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
• Hazard Codes: F
• Risk Statements: 11
• Safety Statements: 16-22-24/25
• RIDADR: UN 1325 4.1/PG 2
• WGK Germany: 3
• TSCA: No
• HazardClass: 4.1
• PackingGroup: II
• HS Code: 29319090
• Storage Class: 4.1B - Flammable solid hazardous materials
• Hazard Classifications: Flam. Sol. 1