Allyl bromide

CAS Number
106-95-6
EC Number
203-446-6
Chemical Formula
C3H5Br
Molecular Weight
120.98 g/mol

Description

Allyl bromide (CAS 106-95-6) is a reactive alkylating agent used primarily as a chemical building block in pharmaceutical synthesis and specialty chemical manufacturing. Known commercially as 3-bromopropene, it introduces the allyl group into target molecules. This process occurs through nucleophilic substitution reactions, enabling the construction of complex active pharmaceutical ingredients and fine chemicals. In pharmaceutical manufacturing, it serves as a key intermediate in synthesizing APIs.

This is particularly useful where allylation of nitrogen, oxygen, or sulfur nucleophiles is required. Biotechnology and life sciences researchers use it to functionalize biomolecules and synthesize allylated nucleosides or amino acid derivatives. These materials are often used for research-scale production. The compound also supports the manufacture of agrochemical intermediates and specialty monomers where controlled allyl group incorporation is critical to the target structure.

Quaternary ammonium biocides with allyl functionality are produced using this substance as the alkylating precursor. The product is supplied as a liquid, typically in stabilized form to prevent premature polymerization during storage. It is available in technical and high-purity grades to meet the requirements of pharmaceutical intermediate synthesis and research applications. This ensures compatibility with various industrial and laboratory protocols.

Standard packaging ranges from small laboratory quantities through to bulk drum supply for industrial-scale production. All batches are tested to ensure they meet rigorous internal quality standards and customer specifications.

Other Names (Synonyms)

3-bromoprop-1-ene|3-Bromopropene|3-Bromo-1-propene|1-Propene, 3-bromo-|3-Bromopropylene|2-Propenyl bromide|1-Bromo-2-propene|Propene, 3-bromo-

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

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Physical Properties

Melting Point -119 °C
Boiling Point 71.3 °C @ Press: 760 Torr
Density 1.398 g/cm³ @ Temp: 20 °C
Flash Point 28 °F
Appearance Allyl bromide is a highly flammable, colorless to light yellow liquid with an unpleasant, pungent odor.
Color Clear colorless to slightly colored
Odor unpleasant
Form Liquid
Water Solubility insoluble
Vapor Pressure 18.66kPa at 25℃
Refractive Index n 20/D 1.469(lit.)
Log P 1.79

Documentation

Safety & Handling Learn More

Danger
GHS02· Flammable GHS05· Corrosive GHS06· Toxic GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard

Hazard Statements

H225 Highly Flammable liquid and vapor
H300 Fatal if swallowed
H301 Toxic if swallowed
H310 Fatal in contact with skin

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.

Trade & Regulatory

HS Code 29033036
UN Number 1099
ADR Class 3
Packing Group I
Storage Class 3 - Flammable liquids
WGK (Germany) 2
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