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B17905

Sigma-Aldrich

Benzyl bromide

reagent grade, 98%

Synonym(s):

α-Bromotoluene

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1 G
CN¥6,432.37

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1 G
CN¥6,432.37

About This Item

Linear Formula:
C6H5CH2Br
CAS Number:
Molecular Weight:
171.03
Beilstein:
385801
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

CN¥6,432.37


Estimated to ship onSeptember 10, 2025Details


Request a Bulk Order

grade

reagent grade

Quality Level

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.)

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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.[1]

Application

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

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

Regulatory Information

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Biochemical Society Transactions, 11, 753-753 (1983)
K Fujiwara et al.
Cancer research, 41(10), 4121-4126 (1981-10-01)
An antibody directed toward pepleomycin, a new antitumor antibiotic related structurally to bleomycin, has been produced in rabbits by immunization with a pepleomycin-protein conjugate which was prepared by a novel procedure of coupling pepleomycin to mercaptosuccinylated bovine serum albumin using
Marie Pribylova et al.
International journal of pharmaceutics, 415(1-2), 175-180 (2011-06-15)
A new targeted conjugates in which paclitaxel was used as a cytostatic compound and an analog of the gonadotropin-releasing hormone (GnRH) as a targeting moiety were synthesized. The molecule of the peptide hormone GnRH was modified to allow its connection
Weibo Cai et al.
Nature protocols, 3(1), 89-96 (2008-01-15)
To take full advantage of the unique optical properties of quantum dots (QDs) and expedite future near-infrared fluorescence (NIRF) imaging applications, QDs need to be effectively, specifically and reliably directed to a specific organ or disease site after systemic administration.
N-polymethylenecarboxymaleimides -- a new class of probes for membrane sulphydryl groups.
D G Griffiths et al.
FEBS letters, 134(2), 261-263 (1981-11-16)

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