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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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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
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
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)
P C Chan et al.
Cancer research, 46(12 Pt 1), 6349-6352 (1986-12-01)
The carcinogenicity of 3-chloro-2-methylpropene (CMP), a chemical intermediate and insecticide, was studied because of possible human exposure and because of its structural relationship to vinyl chloride and allyl chloride. CMP in corn oil was administered by gavage to groups of

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