ChemicalBook--->CAS DataBase List--->513-81-5

513-81-5

513-81-5 Structure

513-81-5 Structure
IdentificationMore
[Name]

2,3-DIMETHYL-1,3-BUTADIENE
[CAS]

513-81-5
[Synonyms]

2,3-DIMETHYL-1,3-BUTADIENE
2,3-DIMETHYL-BUTA-1,3-DIENE
2,3-dimethyl-3-butadiene
2,3-Dimethylbutadiene
2,3-Dimethylenebutane
2,3-Dimethylerythrene,Diiso-propenyl
Biisopropenyl
CH2=C(CH3)C(CH3)=CH2
Diisopropenyl
2,3-Dimethylbutadiene-1,3
2,3-DIMETHYL-1,3-BUTADIENE, MONOMER, STA B.
2,3-Dimethyl-1,3-butadiene, stabilized with BHT
2,3-DIMETHYL-1,3-BUTADIENE , STABILIZED WITH 100PPM BHT
2:3-dimethyl-1:3-bytaduebe
2,3-DIMETHYL-1,3-BUTADIENE 98%
2,3-Dimethyl-1,3-butadiene, 98%, stab. with 100ppm BHT
[EINECS(EC#)]

208-172-0
[Molecular Formula]

C6H10
[MDL Number]

MFCD00008595
[Molecular Weight]

82.14
[MOL File]

513-81-5.mol
Chemical PropertiesBack Directory
[Appearance]

Clear colorless liquid
[Melting point ]

-76 °C (lit.)
[Boiling point ]

68-69 °C (lit.)
[density ]

0.727 g/mL at 20 °C
[vapor pressure ]

269 mm Hg ( 37.7 °C)
[refractive index ]

n20/D 1.438(lit.)
[Fp ]

−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 DataBack Directory
[Hazard Codes ]

F
[Risk Statements ]

R11:Highly Flammable.
[Safety Statements ]

S16:Keep away from sources of ignition-No smoking .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
[RIDADR ]

UN 3295 3/PG 2
[WGK Germany ]

3
[F ]

9
[TSCA ]

Yes
[HazardClass ]

3
[PackingGroup ]

II
[HS Code ]

29012900
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Calcium chloride-->Hydroquinone-->Pinacol
[Preparation Products]

TRIPHENYLMETHYL MERCAPTAN-->1,3-Pentadiene, 2-methyl-, (3Z)--->methoxymethanol-->3,4-Dimethylbenzoic acid-->METHYLPHENYLVINYLSILANE-->4-METHYL-1,3-PENTADIENE-->1,4-DIBROMO-2,3-BIS(BROMOMETHYL)-2-BUTENE-->2,3-Dimethyl-1-butene-->TETRAISOPROPYL ORTHOSILICATE-->DIPHENYLMETHYLETHOXYSILANE-->ALLYLOXYTRIMETHYLSILANE-->2,3,6,7-tetramethylnaphthalene
Hazard InformationBack Directory
[Chemical Properties]

Clear colorless liquid
[Uses]

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.]
Spectrum DetailBack Directory
[Spectrum Detail]

2,3-DIMETHYL-1,3-BUTADIENE(513-81-5)MS
2,3-DIMETHYL-1,3-BUTADIENE(513-81-5)1HNMR
2,3-DIMETHYL-1,3-BUTADIENE(513-81-5)13CNMR
2,3-DIMETHYL-1,3-BUTADIENE(513-81-5)IR1
2,3-DIMETHYL-1,3-BUTADIENE(513-81-5)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2,3-Dimethyl-1,3-butadiene, stabilized with BHT(513-81-5)
[Alfa Aesar]

2,3-Dimethyl-1,3-butadiene, 98%, stab. with 100ppm BHT(513-81-5)
[Sigma Aldrich]

513-81-5(sigmaaldrich)
[TCI AMERICA]

2,3-Dimethyl-1,3-butadiene  (stabilized with BHT),>98.0%(GC)(513-81-5)
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