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281972

Sigma-Aldrich

3-Chloro-2-methyl-1-propene

contains ~250 ppm Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) as stabilizer, 98%

Synonym(s):

β-Methallyl chloride

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About This Item

Linear Formula:
CH2=C(CH3)CH2Cl
CAS Number:
Molecular Weight:
90.55
Beilstein:
878160
EC Number:
MDL number:
UNSPSC Code:
12352100
eCl@ss:
39050134
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.12 (vs air)

vapor pressure

102 mmHg ( 20 °C)

Assay

98%

form

liquid

autoignition temp.

899 °F

contains

~250 ppm Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) as stabilizer

expl. lim.

9.3 %

refractive index

n20/D 1.427 (lit.)

bp

71-72 °C (lit.)

mp

−80 °C (lit.)

density

0.925 g/mL at 20 °C (lit.)

storage temp.

2-8°C

SMILES string

CC(=C)CCl

InChI

1S/C4H7Cl/c1-4(2)3-5/h1,3H2,2H3

InChI key

OHXAOPZTJOUYKM-UHFFFAOYSA-N

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General description

3-Chloro-2-methyl-1-propene is also known as 2-methallyl chloride, methyl allyl chloride and isobutenyl chloride.

Application

3-Chloro-2-methyl-1-propene is a widely used insecticide and a chemical intermediate. It has been used as reactant in the synthesis of cyclobutanone.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

14.0 °F - closed cup

Flash Point(C)

-10 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, 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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National Toxicology Program technical report series, 300, 1-196 (1986-06-01)
Toxicology and carcinogenesis studies of technical-grade 3-chloro-2-methylpropene (containing 5% dimethylvinyl chloride), a widely used insecticide and a chemical intermediate, were performed on F344/N rats and B6C3F1 mice. In the 13-week studies, 50%-100% mortality occurred in groups of male and female
Tze Loon Neoh et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 34(10), 1690-1702 (2017-05-18)
The methodology to electrospin polystyrene (PS) fibres functionalised with the inclusion complex between 1-methylcyclopropene (1-MCP) and α-cyclodextrin (α-CD) has been developed successfully. Due to limited availability, α-CD crystals instead of 1-MCP/α-CD complex were suspended in the electrospinning (ES) solutions to
3-Chloro-2-methylpropene.
Report on carcinogens : carcinogen profiles, 10, 57-58 (2004-08-24)
3-Chloro-2-methylpropene.
IARC monographs on the evaluation of carcinogenic risks to humans, 63, 325-333 (1995-01-01)
Cyclobutanone from methylenecyclopropane via oxaspiropentane.
Salaun JR, et al.
Organic Syntheses, 36-36 (1977)

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