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257931

Sigma-Aldrich

3-Methyl-1-butene

95%

Synonym(s):

α-Isoamylene, 2-Methyl-3-butene, 3,3-Dimethylpropene, 3-Methyl-1-butene, Isopropylethene, Isopropylethylene

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About This Item

Linear Formula:
(CH3)2CHCH=CH2
CAS Number:
563-45-1
Molecular Weight:
70.13
Beilstein/REAXYS Number:
505980
EC Number:
209-249-1
MDL number:
MFCD00008937
UNSPSC Code:
12352100
PubChem Substance ID:
24855619
NACRES:
NA.22

vapor pressure

14.97 psi ( 20 °C)

Quality Level

100

assay

95%

bp

20 °C (lit.)

mp

−168.5-−168 °C (lit.)

density

0.627 g/mL at 25 °C (lit.)

SMILES string

CC(C)C=C

InChI

1S/C5H10/c1-4-5(2)3/h4-5H,1H2,2-3H3

InChI key

YHQXBTXEYZIYOV-UHFFFAOYSA-N

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General description

Gas-phase reaction of the OH radical with 3-methyl-1-butene in the presence of NO has been investigated. Polymerization of 3-methyl-1-butene in the presence of homogeneous metallocene catalyst (co-catalyst methylalumoxane) has been investigated.

Application

3-Methyl-1-butene has been used in asymmetric total synthesis of (−)-Linderol A, a potent inhibitor of melanin biosynthesis of cultured B-16 melanoma cells.

Recommended products

Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.

hose barb

Product No.
Description
Pricing

Z146811

Hose adapter, brass

regulator

Product No.
Description
Pricing

signalword

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-70.6 °F - closed cup

flash_point_c

-57 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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2,3-Dimethyl-1-butene 97%

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190403

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cis-2-Butene ≥99%

Sigma-Aldrich

400890

cis-2-Butene

3,3-Dimethyl-1-butene ≥98.5% (GC)

Sigma-Aldrich

39832

3,3-Dimethyl-1-butene

2-Methylpropene 99%

Sigma-Aldrich

295469

2-Methylpropene

2-Methyl-1,3-butadiene (stabilised) for synthesis

Sigma-Aldrich

8.21258

2-Methyl-1,3-butadiene

trans-2-Butene ≥99%

Sigma-Aldrich

295086

trans-2-Butene

Products of the gas-phase reaction of the OH radical with 3-methyl-1-butene in the presence of NO.
Atkinson R, et al.
International Journal of Chemical Kinetics, 30(8), 577-587 (1998)
Polymerization of 3-methyl-1-butene promoted by metallocene catalysts.
Borriello A, et al.
Macromolecular Rapid Communications, 17(8), 589-597 (1996)
Masayuki Yamashita et al.
The Journal of organic chemistry, 72(15), 5697-5703 (2007-06-21)
The first asymmetric total synthesis of (-)-Linderol A, a potent inhibitor of melanin biosynthesis of cultured B-16 melanoma cells, has been achieved via two key reactions: a diastereoselective [2+2] photocycloaddition of a coumarin-3-carboxylate bearing a chiral auxiliary with 3-methyl-1-butene and

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