4-[(Trimethylsilyl)ethynyl]benzonitrile
4-[(Trimethylsilyl)ethynyl]benzonitrile (CAS: 75867-40-2; C12H13NSi) is a versatile organic building block featuring a nitrile group and a trimethylsilyl-protected alkyne. With a molecular weight of 199.32 g/mol and an assay of 97%, this compound is primarily used in chemical synthesis for constructing more complex organic molecules, particularly in the development of novel materials and pharmaceutical intermediates.
- IUPAC
- 4-[2′-(Trimethylsilyl)ethynyl]benzonitrile
![4-[(Trimethylsilyl)ethynyl]benzonitrile (C12H13NSi) — chemical structure, CAS 75867-40-2; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F75867-40-2.png&w=3840&q=75)
Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its functional groups allow for diverse reactions, including Sonogashira couplings and modifications of the nitrile moiety.
Material Science Research
Serves as a building block in the development of novel materials, such as conjugated polymers and organic semiconductors, leveraging the electronic properties of the aromatic ring and alkyne.
Pharmaceutical Precursor
A valuable precursor in the discovery and synthesis of new pharmaceutical agents, where the benzonitrile and ethynyl functionalities can be incorporated into drug candidates.
| Molecular weight | 199.32 |
|---|---|
| Empirical formula | C12H13NSi |
| Assay | 97% |
| Melting point | 107-111 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H413May cause long-lasting harmful effects to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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-[(Trimethylsilyl)ethynyl]benzonitrile used for?
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This compound is primarily used as a versatile building block in organic synthesis for creating complex molecules, finding applications in material science and pharmaceutical precursor development.
What are the CAS number and formula for 4-[(Trimethylsilyl)ethynyl]benzonitrile?
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The CAS number is 75867-40-2 and the empirical formula is C12H13NSi.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-[(Trimethylsilyl)ethynyl]benzonitrile with an assay of 97%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How should 4-[(Trimethylsilyl)ethynyl]benzonitrile be handled safely?
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This compound is a Warning substance that may cause skin irritation (H315), eye irritation (H319), and respiratory irritation (H335). It may also cause long-lasting harmful effects to aquatic life (H413). Handling requires a dust mask type N95 (US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust.
Is 4-[(Trimethylsilyl)ethynyl]benzonitrile a controlled substance?
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The provided data does not indicate that 4-[(Trimethylsilyl)ethynyl]benzonitrile is a controlled substance.
How is 4-[(Trimethylsilyl)ethynyl]benzonitrile packed and shipped?
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Tech Serve Solutions, as a global supplier and exporter, packs and ships chemicals in compliance with international regulations for safe transport. Specific packing details can be confirmed upon order.
How can I request a sample or quote for 4-[(Trimethylsilyl)ethynyl]benzonitrile?
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To request a sample or quote, please contact our sales department through the website or by phone, providing the product name and CAS number (75867-40-2).
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