Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

vapor pressure

204.6 mmHg ( −49.5 °C)

Quality Level






−23.2 °C (lit.)


−102.7 °C (lit.)

SMILES string




InChI key


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General description

Propyne (methylacetylene) is commonly used in gas welding.


Propyne (CH3C≡CH) can be used:
  • As a fuel for stoichiometric low-pressure flat-flames in isomer-specific combustion studies.
  • In the synthesis of polycyclic aromatic hydrocarbons under various reaction conditions.
  • In the synthesis of phenylacetylenes.
  • In the selective synthesis of propene by catalytic hydrogenation using Pt/Al2O3 catalyst.


25, 100 g in Sure-Pac™

Other Notes

For 480983-100G-EU packaging: 1000 mL of aluminium cylinder equipped with stainless steel valve.

Recommended products

  • For 480983-25/100G: Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.
  • For 480983-100G-EU: outlet fitting: DIN 477-1 no.1, Z742162 or Z742164 are the recommended regulators.

Signal Word


Hazard Statements

Precautionary Statements

Target Organs

Respiratory system

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 1954 2.1

WGK Germany


Certificate of Analysis

Certificate of Origin

Propyne hydrogenation over alumina-supported palladium and platinum catalysts
Kennedy DR, et al.
Applied Catalysis A: General, 259(1), 109-120 (2004)
In situ generation of 1-propyne: A useful introduction of 1-propyne on unsaturated halogenated compounds through the Sonogashira reaction
Abraham E and Suffert J
Synlett, 2002(02), 0328-0330 (2002)
Masumi Asakura et al.
Mutation research, 652(2), 122-130 (2008-03-18)
A gas exposure system using rotating vessels was improved for exposure of cultured mammalian cells to gaseous compounds in the chromosomal aberration assay. This system was composed of 12 square culture vessels, a device for preparation of air containing test...
Kirill A Chernyshev et al.
Magnetic resonance in chemistry : MRC, 45(8), 661-666 (2007-06-15)
Configurational assignment of five carbon, silicon and germanium containing propynal oximes has been carried out by means of experimental measurements and high-level ab initio calculations of their 13C-1H, 13C-13C and 15N-1H spin-spin coupling constants. The title compounds were shown to...
Yongping Zhang et al.
Langmuir : the ACS journal of surfaces and colloids, 29(6), 1868-1874 (2013-01-19)
To achieve silicon functionalization for the development of hybrid devices, multifunctional molecules may be employed to attach to the silicon surfaces. It is important to get a fundamental understanding about the molecule/silicon interface chemistry and the binding configuration. The surface...
Protocol for GC Analysis of C1-C5 Hydrocarbons on Alumina Sulfate PLOT
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