4,4′-Bis(triethoxysilyl)-1,1′-biphenyl
4,4′-Bis(triethoxysilyl)-1,1′-biphenyl (CAS: 123640-93-7) is an organosilicon compound with the linear formula [-C6H4Si(OC2H5)3]2 and a molecular weight of 478.73 g/mol. This silicon-based nucleophile is noted for its reactivity in palladium-catalysed cross-coupling reactions. It serves as a valuable building block in chemical synthesis, particularly within the fields of organometallic reagents and organosilicon chemistry.
- IUPAC
- 4,4′-Bis(triethoxysilyl)biphenyl
- Synonyms
- 123640-93-7[-C6H4Si(OC2H5)3]24,4′-Bis(triethoxysilyl)biphenyl
![4,4′-Bis(triethoxysilyl)-1,1′-biphenyl ([-C6H4Si(OC2H5)3]2) — chemical structure, CAS 123640-93-7; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F123640-93-7.png&w=3840&q=75)
Palladium-Catalysed Cross-Coupling Reactions
This compound acts as a silicon-based nucleophile, demonstrating reactivity in various palladium-catalysed cross-coupling reactions. Its structure facilitates its participation in forming new carbon-carbon or carbon-heteroatom bonds.
Organosilicon Chemistry
As a trialkoxysilane derivative, it is a key intermediate in organosilicon chemistry. It can be used to introduce specific biphenyl functionalities into polymer backbones or surfaces.
Chemical Synthesis
It serves as a versatile reagent in organic and inorganic synthesis. Its unique structure allows for its application in the development of novel materials and complex molecular architectures.
| Molecular weight | 478.73 |
|---|---|
| Linear formula | [-C6H4Si(OC2H5)3]2 |
| Assay | 95% |
| Boiling point | 203-206 °C/0.3 mmHg(lit.) |
| Density | 1.047 g/mL at 25 °C(lit.) |
| Application | A silicon-based nucleophile shown to be reactive in Pd-catalyzed cross-coupling reactions.1 |
Hazard statements
- H413May cause long-lasting harmful effects to aquatic life
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | >110 °C / >230 °F |
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl used for?
+
4,4′-Bis(triethoxysilyl)-1,1′-biphenyl is primarily used as a silicon-based nucleophile in palladium-catalysed cross-coupling reactions and as a building block in organosilicon chemistry and general chemical synthesis.
What is the CAS number and formula for 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl?
+
The CAS number is 123640-93-7. The linear formula is [-C6H4Si(OC2H5)3]2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this product at a minimum purity of 95% (assay). This product is intended for laboratory and research purposes and is not supplied as USP, BP, EP, or pharmaceutical grade.
What are the safety considerations when handling 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl?
+
This compound may cause long lasting harmful effects to aquatic life (H413). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, should be used. Handle in a well-ventilated area.
How is 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl packed, shipped, and exported?
+
Tech Serve Solutions offers this chemical in various pack sizes suitable for laboratory and industrial needs. We are experienced global exporters and comply with all international shipping regulations for chemical compounds.
How can I request a sample or quote for 4,4′-Bis(triethoxysilyl)-1,1′-biphenyl?
+
To request a sample or a detailed quotation, please contact our sales team through the website or by calling us directly. Please specify the quantity and your delivery location.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis