B17905

Benzyl bromide

reagent grade, 98%

• Synonym(s): α-Bromotoluene
• Linear Formula: C₆H₅CH₂Br
• CAS Number: 100-39-0
• Molecular Weight: 171.03
• Beilstein: 385801
• EC Number: 202-847-3
• MDL number: MFCD00000172
• UNSPSC Code: 12352100
• PubChem Substance ID: 24891612
• NACRES: NA.22

Properties

• grade: reagent grade
• Quality Level: 200
• vapor density: 5.8 (vs air)
• Assay: 98%
• form: liquid
• impurities: ≤0.5% p-bromotoluene
• refractive index: n20/D 1.575 (lit.)
• bp: 198-199 °C (lit.)
• mp: −3-−1 °C (lit.)
• density: 1.438 g/mL at 25 °C (lit.)
• SMILES string: BrCc1ccccc1
• InChI: 1S/C7H7Br/c8-6-7-4-2-1-3-5-7/h1-5H,6H2
• InChI key: AGEZXYOZHKGVCM-UHFFFAOYSA-N

Description

General description

Benzyl bromide is an aromatic halide that is mainly used as a protecting agent for protecting hydroxy group of alcohols via O-benzylation reaction.

Application

Benzyl bromide has been used as an initiator in the synthesis of poly(styrene-b-methylmethacrylate) copolymers by atom transfer radical polymerization. It can undergo Menschutkin reaction with 1, 2-dimethylimidazole to form 3-benzyl-1, 2-dimethylimidazolium bromide.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 2
• Flash Point(F): 186.8 °F - closed cup
• Flash Point(C): 86 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves