Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso


  • Didier Despois
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_1890-4



Propylene (IUPAC name propene) is an unsaturated hydrocarbon with a double bond, the second alkene after ethylene. It is a gas at standard ambient temperature and pressure. It can polymerize (polypropylene). It has been detected in the interstellar medium.


Propylene was not specifically searched for in the interstellar medium, as its rotational lines were expected to be weak, due to its low electric dipole moment. It has, however, been detected serendipitously in a spectral survey toward the dark cloud TMC-1 (Marcelino et al. 2007).

See Also


Ambient Temperature Double Bond Dipole Moment Bioorganic Chemistry Electric Dipole 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References and Further Reading

  1. Marcelino N, Cernicharo J, Agúndez M, Roueff E, Gerin M, Martín-Pintado J, Mauersberger R, Thum C (2007) Discovery of interstellar propylene (CH2CHCH3): missing links in interstellar gas-phase chemistry. Astrophys J 665:L127–L130ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Observatoire de BordeauxFloiracFrance