2-Butyne
2-Butyne (CAS: 503-17-3), with the molecular formula C4H6 and a molar mass of 54.09 g/mol, is a volatile alkyne. This organic compound is primarily utilised as a building block in chemical synthesis, particularly in the preparation of organometallic complexes. Its high reactivity makes it a valuable reagent for researchers and industrial chemists exploring novel synthetic pathways and material science applications.
- IUPAC
- Crotonylene,Dimethylacetylene
- Synonyms
- CrotonyleneDimethylacetylene
Organometallic Chemistry
2-Butyne serves as a ligand in the synthesis of metallacyclobutene complexes. It has been specifically employed in the preparation of THF-free metallacyclobutene complexes, contributing to advancements in organometallic research.
Organic Synthesis Reagent
As a reactive alkyne, 2-Butyne is a versatile building block for constructing more complex organic molecules. Its triple bond readily participates in various addition reactions, making it useful in diverse synthetic strategies.
Research and Development
This compound is utilised in research laboratories for exploring new chemical reactions and developing novel compounds. Its defined properties make it a reliable reagent for academic and industrial R&D.
| Molecular weight | 54.09 |
|---|---|
| Linear formula | CH3C≡CCH3 |
| Assay | 99% |
| Boiling point | 27 °C(lit.) |
| Density | 0.691 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.393(lit.) |
| Vapour pressure | 11.47 psi (20 °C) |
| Melting point | −32 °C(lit.) |
| Storage temperature | 2-8°C |
| Application | 2-Butyne has been used in preparation of THF-free metallacyclobutene complexes1. |
Hazard statements
- H224Extremely flammable liquid and vapour
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -25 °C / -13 °F |
| Transport (UN / ADR) | UN 1144 3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F+,Xi |
| Risk statements (R) | 12-36/37/38 |
| Safety statements (S) | 16-26-36 |
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 2-Butyne used for?
+
2-Butyne is used as a building block in organic synthesis and in the preparation of organometallic complexes, such as THF-free metallacyclobutene complexes.
What is the CAS number and formula for 2-Butyne?
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The CAS number for 2-Butyne is 503-17-3, and its molecular formula is C4H6 (CH3C≡CCH3).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-Butyne with an assay of 99%. We do not represent this product as USP, BP, or EP grade.
How should 2-Butyne be handled and stored?
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2-Butyne is highly flammable (H224) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). It should be stored at 2-8°C, away from ignition sources, and handled with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection.
Is 2-Butyne a controlled substance?
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Based on the provided data, 2-Butyne is not listed as a controlled substance. However, users should always verify local regulations.
How is 2-Butyne packed and shipped?
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2-Butyne is packed according to international shipping regulations for hazardous materials. As a global supplier and exporter, Tech Serve Solutions ensures compliance with all relevant transport guidelines.
How can I request a quote or sample of 2-Butyne?
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To request a quote or sample of 2-Butyne, please contact our sales team via the website or by phone. Our experts will be pleased to assist you.
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