Basic Information

Structural Information

• Structure Type: Aliphatic unsaturated halogenated hydrocarbon, alkyne derivative
• Structural Features: Contains a carbon-carbon triple bond and a bromo substituent on the straight alkyl chain. The active alkyne group and carbon-bromine bond endow the molecule with high chemical reactivity for coupling and substitution reactions.

Physical & Chemical Properties

• Appearance: Colorless to pale yellow transparent liquid
• Odor: Special pungent organic odor
• Melting Point: ?28 °C
• Boiling Point: 120–122 °C
• Density: 1.46 g/mL (20 °C)
• Refractive Index: 1.498 (20 °C)
• Solubility: Insoluble in water; miscible with ethanol, ether, dichloromethane and most organic solvents
• Stability: Stable under sealed and cool conditions. Easy to decompose and polymerize under high temperature, strong light or contact with strong bases. Incompatible with strong oxidants.

Synthesis & Applications

Synthesis Method

Main Applications

• Pharmaceutical Intermediates: Key raw material for synthesizing anti-cancer drugs, antibiotics and other bioactive compounds.
• Organic Synthesis: Widely used for preparing alkynyl derivatives, heterocyclic compounds and fine chemical products.
• Chemical Research: Common synthetic building block for laboratory organic chemistry and coupling reaction research.
• Material Chemistry: Intermediate for functional polymer and liquid crystal material synthesis.

Safety & Storage Instructions

• Hazard Classification: Flammable liquid; severe irritant to skin, eyes and respiratory tract; harmful by inhalation and ingestion
• Personal Protection: Wear chemical goggles, vapor respirator and chemical resistant gloves. Keep away from open flame and static electricity. Avoid vapor inhalation and direct contact.
• Storage Condition: Keep container tightly sealed. Store in cool, dry, dark and well-ventilated explosion-proof area. Separated from fire sources, oxidants, alkalis and combustibles.
• Transportation: Classified as flammable hazardous chemicals. Comply with dangerous goods transport regulations; prevent leakage, collision and high temperature exposure.

Quality & Spectral Data

• Purity (GC): ≥98.0% / ≥99.0%
• Moisture: ≤0.1%
• Density: 1.45–1.47 g/mL (20 °C)
• Refractive Index: 1.496–1.500 (20 °C)
• IR Spectrum: Characteristic absorption peaks conform to standard reference spectrum

Information Summary Table