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CAS 463-49-0

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Allene

Description:
Allene, with the CAS number 463-49-0, is a colorless gas that is classified as a diene due to its unique structure featuring two adjacent double bonds. Its molecular formula is C3H4, and it is characterized by a linear arrangement of carbon atoms, where the central carbon atom is sp-hybridized, leading to a distinctive geometry. This results in a cumulated double bond system, which imparts unique reactivity and properties. Allene is known for its ability to participate in various chemical reactions, including polymerization and addition reactions, making it a valuable intermediate in organic synthesis. It has a relatively low boiling point and is less stable than other hydrocarbons, which can lead to polymerization under certain conditions. Additionally, allene exhibits interesting optical properties due to its chiral nature, as it can exist in enantiomeric forms. Its applications extend to the production of specialty chemicals and as a building block in the synthesis of more complex organic compounds.
Formula:C3H4
InChI:InChI=1S/C3H4/c1-3-2/h1-2H2
InChI key:InChIKey=IYABWNGZIDDRAK-UHFFFAOYSA-N
SMILES:C(=C)=C
Synonyms:
  • Aleno
  • Allen
  • Allene
  • Bis(methylene)methane
  • Dimethylenemethane
  • Propadiene
  • sym-Allylene
  • 1,2-Propadiene
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