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Merck
CN

257931

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
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24855619
EC Number:
209-249-1
Beilstein/REAXYS Number:
505980
MDL number:
MFCD00008937

Key Documents

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Product Name

3-Methyl-1-butene, 95%

InChI key

YHQXBTXEYZIYOV-UHFFFAOYSA-N

InChI

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

SMILES string

CC(C)C=C

vapor pressure

14.97 psi ( 20 °C)

assay

95%

bp

20 °C (lit.)

mp

−168.5-−168 °C (lit.)

density

0.627 g/mL at 25 °C (lit.)

Quality Level

100

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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.

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.

Other Notes

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

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

WGK 3

flash_point_f

-70.6 °F - closed cup

flash_point_c

-57 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBP9093
SHBP5011
SHBN5389
SHBL9666
SHBK8899

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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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