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HomeProduct name list2,3-DIMETHYL-1,3-BUTADIENE

2,3-DIMETHYL-1,3-BUTADIENE

  • CAS NO.:513-81-5
  • Empirical Formula: C6H10
  • Molecular Weight: 82.14
  • MDL number: MFCD00008595
  • EINECS: 208-172-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-12-18 14:15:30
2,3-DIMETHYL-1,3-BUTADIENE Structural

What is 2,3-DIMETHYL-1,3-BUTADIENE?

Chemical properties

Clear colorless liquid

The Uses of 2,3-DIMETHYL-1,3-BUTADIENE

2,3-Dimethyl-1,3-butadiene undergoes Diels Alder cycloaddition reaction and it also participates in polymerization reactions. It is also involved in manufacturing of synthetic rubber.

General Description

2,3-Dimethyl-1,3-butadiene (DMBD) is a conjugated diene. It undergoes Diels Alder cycloaddition reaction with 2-thio-3-chloroacrylamides under thermal, catalytic and microwave conditions. It undergoes thermal [4+2] cycloaddition reaction with 3-acetyl-, 3-carbamoyl and 3-ethoxycarbonylcoumarins under solvent free conditions. DMBD participates in polymerization reactions in the presence of iron dichloride complexes based catalysts.

Purification Methods

Distil it from NaBH4, and purify it by zone melting. [Beilstein 1 IV 1023.]

Properties of 2,3-DIMETHYL-1,3-BUTADIENE

Melting point: -76 °C (lit.)
Boiling point: 68-69 °C (lit.)
Density  0.726 g/mL at 25 °C (lit.)
vapor pressure  269 mm Hg ( 37.7 °C)
refractive index  n20/D 1.438(lit.)
Flash point: −8 °F
storage temp.  2-8°C
form  Liquid
color  Clear colorless
Water Solubility  Miscible with chloroform. Immiscible with water.
Merck  14,3238
BRN  605285
Dielectric constant 2.1000000000000001
CAS DataBase Reference 513-81-5(CAS DataBase Reference)
EPA Substance Registry System 1,3-Butadiene, 2,3-dimethyl- (513-81-5)

Safety information for 2,3-DIMETHYL-1,3-BUTADIENE

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
GHS Hazard Statements H225:Flammable liquids
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

Computed Descriptors for 2,3-DIMETHYL-1,3-BUTADIENE

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