1,2-butadiene

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Names

[ CAS No. ]:
590-19-2

[ Name ]:
1,2-butadiene

[Synonym ]:
Allene,methyl
1-Methylallene
1,2-butadiene
2,3-dimethylbutene
1,2-butadien
Buta-1,2-dien
2,3-butadiene
Methylallene
MFCD00039911
EINECS 209-674-2

Chemical & Physical Properties

[ Density]:
0.612 g/cm3

[ Boiling Point ]:
10.8 °C(lit.)

[ Melting Point ]:
-136.2ºC

[ Molecular Formula ]:
C4H6

[ Molecular Weight ]:
54.09040

[ Exact Mass ]:
54.04700

[ LogP ]:
1.34740

Safety Information

[ Hazard Codes ]:
F+: Highly flammable;

[ Risk Phrases ]:
R12

[ Safety Phrases ]:
S16-S23-S24/25

[ RIDADR ]:
UN 2037 2.1

[ WGK Germany ]:
1

[ Hazard Class ]:
2.1

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3-methylpent-4-yn-2-ol
  • 3-Chloro-1-butyne
  • 1-Methylcyclopropene
  • 1,2,3-Butatriene
  • 1-buten-3-yne
  • 2,3-Dibromo-1-butene
  • 1-butyne
  • But-2-yne
  • Ethanol
  • ch3cho

DownStream

  • 3-butene-1,2-diol
  • 4-Phenyl-1-cyclohexene
  • 1,3-Pentadiene
  • But-2-yne
  • 1-buten-3-yne
  • Diacetylene
  • 1-butyne
  • Allene
  • butadiene
  • 1-Butene

Related Compounds

  • 1-phenyl-1,2-butadiene
  • 4-Chloro-1,2-butadiene
  • 3-methyl-1,2-butadiene
  • 3-Methyl-1,2-butadiene
  • 2-chloro-1,2-butadiene
  • .1-bromo-1,2-butadiene