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Topic summary

Isoprene

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Names IUPAC name
Isoprene
Preferred IUPAC name
2-Methylbuta-1,3-diene
Other names
2-Methyl-1,3-butadiene
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard100.001.040KEGG
UNII
  • InChI=1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
    Key: RRHGJUQNOFWUDK-UHFFFAOYSA-N
  • InChI=1/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
    Key: RRHGJUQNOFWUDK-UHFFFAOYAS
  • CC(=C)C=C
Properties C5H8Molar mass68.12 g/mol Density0.681 g/cm Melting point−143.95 °C (−227.11 °F; 129.20 K) Boiling point34.067 °C (93.321 °F; 307.217 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Isoprene, or 2-methyl-1,3-butadiene, is a common volatile organic compound with the formula CH2=C(CH3)−CH=CH2. In its pure form it is a colorless volatile liquid. It is produced by many plants and animals (including humans) and its polymers are the main component of natural rubber.

Wikipedia source