Thermo Scientific™ Propargyl Bromide 80% (w/w) in Toluene, Stabilized

Thermo Scientific™ Propargyl Bromide 80% (w/w) in Toluene, Stabilized is a reactive alkynyl bromide supplied as an 80% solution in toluene and stabilized with magnesium oxide (MgO). It is widely used in organic synthesis as a propargylating agent for introducing terminal alkyne groups into molecules.

Due to its high reactivity and volatility, this product is stabilized and supplied under controlled conditions to ensure safe handling and consistent performance in laboratory and industrial applications.

⚠ Hazard Classification:

Toxic | Health Hazard | Corrosive | Flammable

UN 3286 | ADR 3, II

Chemical Information

• Chemical Name: Propargyl bromide
• Synonym: 3-Bromopropyne
• CAS Number: 106-96-7
• Molecular Formula: C₃H₃Br
• Molecular Weight: 118.96 g/mol
• Density (20°C): 1.33–1.38 g/mL
• Flash Point: 4 °C
• EINECS: 203-447-1
• UN Number: 3286
• ADR Classification: 3, II

Composition & Specifications

• Concentration: 80% (w/w) in toluene
• Stabilizer: 0.3% MgO
• GC Purity: ≥96.0% (excluding toluene)
• Argentometric Titration: 75–85% (product in toluene)
• Refractive Index: 1.4910–1.4970 (20°C, 589 nm)
• Appearance: Colorless to yellow-orange solution

Applications

• Propargylation reactions
• Alkynylation of alcohols and amines
• Click chemistry precursor synthesis
• Pharmaceutical intermediate synthesis
• Polymer functionalization
• Agrochemical and fine chemical synthesis
• Heterocycle synthesis

Storage & Handling

• Storage Temperature: Refrigerated
• Keep container tightly closed
• Store away from heat and ignition sources
• Use appropriate PPE and chemical fume hood
• Refer to SDS prior to handling

Available Pack Sizes

Thermo Scientific™ Propargyl Bromide 80% in Toluene (Stabilized) provides a reliable and controlled source of propargyl functionality for organic synthesis and industrial chemistry applications. Its stabilized formulation ensures safer handling while maintaining high reactivity and consistent performance.