isoprene

Full Material List
2-methylbuta-1,3-diene

Identifiers

FEMA N/A
CAS 78-79-5
EINECS 201-143-3
Synonyms
  • 1,3- butadiene, 2-methyl-
  • 2- methyl 1,3-butadiene
  • beta- methyl bivinyl
  • 2- methyl butadiene
  • 2- methyl-1,3-butadiene
  • 3- methyl-1,3-butadiene
  • 2- methylbuta-1,3-diene
  • 2- methylbutadiene
  • iso pentadiene
JECFA Food Flavoring N/A
JECFA Food Additive N/A
DG SANTE Food Flavourings N/A
DG SANTE Food Contact Materials 2-methyl-1,3-butadiene
FDA UNII 0A62964IBU
CoE Number N/A
XlogP3-AA N/A
Molecular Weight 68.11876
Molecular Formula C5 H8

Organoleptic

Organoleptic Notes
  • Odor and/or flavor descriptions from others (if found).
Odor N/A
Flavor N/A

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Properties

Food Chemicals Codex Listed No
Appearance colorless clear liquid (est)
Assay 95.00 to 100.00
Specific Gravity 0.67700 to 0.68300 @ 25.00 °C.
Lbs/Gal (est) 5.633 to 5.683
Refractive Index 1.41500 to 1.42100 @ 20.00 °C.
Melting Point N/A
Boiling Point 33.00 to 34.00 °C. @ 760.00 mm Hg
Flash Point -65.00 °F. TCC ( -53.89 °C. )
Acid Value N/A
Vapor Pressure 548.955017 mmHg @ 25.00 °C. (est)
Vapor Density N/A
logP (o/w) 2.42
Soluble In
  • alcohol
  • water, 642 mg/L @ 25 °C (exp)
  • water
Occurrence
  • beer - 0.004 mg/kg
  • carrot root
  • orange oil