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2-Methyl-2-butene

analytical standard

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Synonym(s):
β-Isoamylene, Amylene
Linear Formula:
CH3CH=C(CH3)2
CAS Number:
513-35-9
Molecular Weight:
70.13
Beilstein:
1361353
EC Number:
208-156-3
MDL number:
MFCD00009276
PubChem Substance ID:
329760158
NACRES:
NA.24

grade

analytical standard

Quality Level

100

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

SMILES string

C\C=C(\C)C

InChI

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

InChI key

BKOOMYPCSUNDGP-UHFFFAOYSA-N

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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.

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.

Signal Word

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 Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-4.0 °F

Flash Point(C)

-20 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Brown, William H.
Study Guide with Student Solutions Manual for Brown/Foote/Iverson/Anslyn's Organic Chemistry,, 234-234 (2011)
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)
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