Ethynyltributylstannane
Ethynyltributylstannane (CAS 994-89-8), with the formula HC≡CSn(CH2CH2CH2CH3)3 and a molecular weight of 315.08 g/mol, is an organotin compound. It serves as a versatile ethynylation reagent in organic synthesis, notably for preparing vinylstannanes and stannylisoxazoles, and for the ethynylation of azaaromatics. This compound is supplied by Tech Serve Solutions for research and synthesis applications.
- IUPAC
- Tributylstannylacetylene
Preparation of Vinylstannanes
Ethynyltributylstannane is employed as a key reagent in the synthesis of vinylstannanes, which are valuable intermediates in various coupling reactions.
Synthesis of Stannylisoxazoles
This organotin compound facilitates the preparation of stannylisoxazoles, contributing to the diversity of heterocyclic compounds accessible through synthetic chemistry.
Ethynylation of Azaaromatics
It acts as an effective ethynylation reagent for azaaromatic compounds, enabling the introduction of an ethynyl group onto these important nitrogen-containing heterocycles.
| Molecular weight | 315.08 |
|---|---|
| Linear formula | HC≡CSn(CH2CH2CH2CH3)3 |
| Assay | 95% |
| Boiling point | 70 °C/0.2 mmHg(lit.) |
| Density | 1.089 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.476(lit.) |
| Application | Used to prepare vinylstannanes1 and stannylisoxazoles.2 Ethynylation reagent for azaaromatics.3 |
Hazard statements
- H301Toxic if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H372Causes damage to organs through prolonged exposure
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P314Get medical attention if you feel unwell
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 74 °C / 165.2 °F |
| Transport (UN / ADR) | UN 2788 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,Xn,N |
| Risk statements (R) | 21-25-36/38-48/23/25-50/53 |
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 Ethynyltributylstannane used for?
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Ethynyltributylstannane is used in organic synthesis for preparing vinylstannanes, stannylisoxazoles, and for the ethynylation of azaaromatics.
What is the CAS number and formula for Ethynyltributylstannane?
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The CAS number is 994-89-8 and the molecular formula is HC≡CSn(CH2CH2CH2CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethynyltributylstannane with an assay of 95%. This product is not represented as USP, BP, EP, or pharmacopoeia grade.
How should Ethynyltributylstannane be handled?
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Ethynyltributylstannane is a toxic substance (Danger: H301, H312, H372) that is harmful if swallowed, in contact with skin, and can cause organ damage through prolonged or repeated exposure. It is also a skin and eye irritant (H315, H319) and very toxic to aquatic life (H400). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area.
Is Ethynyltributylstannane a controlled substance?
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The provided data does not indicate that Ethynyltributylstannane is a controlled substance.
How is Ethynyltributylstannane shipped?
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Ethynyltributylstannane is shipped under UN 2788, Hazard Class 6.1, Packing Group III. It is classified as Toxic and Dangerous for the environment.
How can I request a quote or sample?
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To request a quote or sample of Ethynyltributylstannane, please contact the Tech Serve Solutions sales team via our website or direct enquiry form.
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