345830

3-Bromo-2-methylpropene

97%

• Synonym(s): Methallyl bromide, Methylallyl bromide
• Linear Formula: H₂C=C(CH₃)CH₂Br
• CAS Number: 1458-98-6
• Molecular Weight: 135.00
• MDL number: MFCD00134155
• UNSPSC Code: 12352100
• PubChem Substance ID: 24861353
• NACRES: NA.22

Properties

• Quality Level: 100
• Assay: 97%
• form: liquid
• impurities: 0.1% hydroquinone
• refractive index: n20/D 1.472 (lit.)
• bp: 94-95 °C (lit.)
• density: 1.339 g/mL at 25 °C (lit.)
• functional group: alkyl halide; bromo
• storage temp.: 2-8°C
• SMILES string: CC(=C)CBr
• InChI: 1S/C4H7Br/c1-4(2)3-5/h1,3H2,2H3
• InChI key: USEGQJLHQSTGHW-UHFFFAOYSA-N

Description

General description

Rotational isomerism in 3-bromo-2-methylpropene has been studied by IR spectroscopy.

Application

3-Bromo-2-methylpropene may be used:

• in the synthesis of alkenyl imines
• in the synthesis of 2-methylpropenyl (“methallyl”) complex, Cp*Os(η³-allyl)Br₂
• in a study of chiral phase transfer alkylation leading to (S)-α-alkylcysteines

Safety Information

• Pictograms: GHS02,GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H225,H302 + H332,H314,H411
• Precautionary Statements: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 44.6 °F - closed cup
• Flash Point(C): 7 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves