4-Bromophenyl Isocyanate

We are a manufacturer based in China, specializing in high-quality 4-Bromophenyl Isocyanate for industrial clients worldwide. Technical support and custom formulation available.

Category:Chemical Additives  |  Brand:MT

Factory Direct 7-30 Days Lead Time MOQ: 100KG Global Export

Introduction

​4-Bromophenyl Isocyanate

Chemical Formula: C₇H₄BrNO
Structure: Phenyl ring with a ​bromine atom at the ​para position (4-position) and an ​isocyanate group (-N=C=O).
Physical Form: Colorless to pale yellow liquid or low-melting solid.


​Properties

  • ​Reactivity:
    • ​Isocyanate group reacts with nucleophiles (amines, alcohols, water) to form ​urethanes, ureas, and derivatives.
  • ​Solubility:
    • Soluble in ​dichloromethane, toluene, THF; reacts with water.

​Applications

  1. ​Organic Synthesis:
    • Building block for ​pharmaceuticals, agrochemicals, and polymers.
  2. ​Urea/Urethane Production:
    • Reacts with amines → ​ureas; reacts with alcohols → ​urethanes.
  3. ​Polymer Chemistry:
    • Crosslinking agent for ​polymers and resins.

​Safety Considerations

  • ​Toxicity: Toxic and a ​respiratory irritant.
  • ​Moisture Sensitivity: Degrades in presence of water; handle under ​inert conditions (e.g., dry N₂ atmosphere).
  • ​Storage: Seal tightly, protect from humidity.

Summary:
4-Bromophenyl isocyanate’s ​reactive isocyanate group and ​bromine substitution make it a key reagent for synthesizing ureas, urethanes, and polymers. Its utility in pharmaceuticals and materials science is tempered by ​strict safety protocols due to toxicity and moisture sensitivity.

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