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Merck
CN

66050

2-Methyl-2-butene

analytical standard

Synonym(s):

β-Isoamylene, Amylene

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About This Item

Linear Formula:
CH3CH=C(CH3)2
CAS Number:
513-35-9
Molecular Weight:
70.13
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329760158
EC Number:
208-156-3
Beilstein/REAXYS Number:
1361353
MDL number:
MFCD00009276

Key Documents

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Product Name

2-Methyl-2-butene, analytical standard

InChI key

BKOOMYPCSUNDGP-UHFFFAOYSA-N

InChI

1S/C5H10/c1-4-5(2)3/h4H,1-3H3

SMILES string

C\C=C(\C)C

grade

analytical standard

vapor density

2.4 (vs air)

assay

≥99.0% (GC)

shelf life

limited shelf life, expiry date on the label

expl. lim.

8.7 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.385 (lit.)
n20/D 1.387

bp

35-38 °C (lit.)

mp

−134 °C (lit.)

density

0.662 g/mL at 25 °C (lit.)

application(s)

environmental
petroleum

format

neat

Quality Level

100

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Application

It has been used in isolation and identification of carbonyl compounds reacting with ozone using off-line sampling method followed by liquid chromatography.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

General description

2-Methyl-2-butene is a trisubstituted olefin which is mostly used as a precursor for peroxyacetyl nitrate. It can be prepared by the acid-catalyzed dehydration of 3-methyl-2-butanol. It has 3 alkyl groups on the double bond.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - Muta. 2 - STOT SE 3

target_organs

Central nervous system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-4.0 °F

flash_point_c

-20 °C

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCL8625
BCCL2205
BCCH1456
BCCD6435
BCCC4431

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Gas-phase reaction of ozone with 2-methyl-2-butene: Dicarbonyl formation from Criegee biradicals.
Grosjean, Daniel.
Environmental Science & Technology, 24.9, 1428-1432 (1990)
Brown, William H.
Study Guide with Student Solutions Manual for Brown/Foote/Iverson/Anslyn's Organic Chemistry,, 234-234 (2011)
Tomoyasu Kadoguchi et al.
Experimental physiology, 100(3), 312-322 (2015-01-13)
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