Propyne
Propyne (CAS: 74-99-7), a chemical compound with the linear formula CH₃C≡CH and a molecular weight of 40.06 g/mol, is a highly flammable alkyne. It is typically supplied at 98% assay for use in chemical synthesis and as a specialty gas. Its properties make it a valuable reagent in various organic synthesis pathways and industrial applications requiring a reactive triple bond.
Chemical Synthesis
Propyne serves as a building block in organic synthesis, participating in addition reactions and cycloadditions due to its alkyne functionality. It is used to introduce the propynyl group into target molecules.
Specialty Gas Applications
As a specialty gas, propyne can be utilised in specific research and industrial processes where its unique chemical properties are required. It may find use in controlled environments for research purposes.
Reagent in Organic Chemistry
The compound acts as a useful reagent for introducing unsaturated carbon chains in organic chemistry research. Its reactivity allows for the formation of complex molecules.
| Molecular weight | 40.06 |
|---|---|
| Linear formula | CH3C≡CH |
| Assay | 98% |
| Boiling point | −23.2 °C(lit.) |
| Vapour pressure | 204.6 mmHg (−49.5 °C) |
| Melting point | −102.7 °C(lit.) |
Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P410Protect from sunlight
| Protective equipment | Eyeshields, Faceshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -51 °C / -59.8 °F |
| Transport (UN / ADR) | UN 1954 2.1 |
| Water hazard class (WGK, DE) | nwg |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-37-43 |
| Safety statements (S) | 16-36-37-38 |
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 Propyne used for?
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Propyne is primarily used in chemical synthesis and as a specialty gas, serving as a building block for organic molecules and in specific research applications.
What is the CAS number and formula for Propyne?
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The CAS number for Propyne is 74-99-7, and its linear formula is CH₃C≡CH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Propyne with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should Propyne be handled safely?
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Propyne is extremely flammable and can cause respiratory irritation. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area away from ignition sources, adhering to precautionary statements P210, P261, and P410 + P403.
Is Propyne a controlled substance?
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The provided data does not indicate that Propyne is a controlled substance.
How is Propyne packed and shipped?
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Propyne is classified under UN 1954, Class 2.1, indicating it is shipped as a flammable gas. Specific packaging details for export are available upon request.
How can I request a quote or sample of Propyne?
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To request a quote or sample, please contact the Tech Serve Solutions sales team through our website or by phone, providing the product name and CAS number.
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