Intermediates

3-Bromo-4-fluorobenzaldehyde

  • CAS No.77771-02-9
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 3-Bromo-4-fluorobenzaldehyde (CAS 77771-02-9), a key aromatic intermediate for agrochemical synthesis such as Cyfluthrin.

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Product Technical Details

Product Overview

3-Bromo-4-fluorobenzaldehyde is a high-value aromatic aldehyde widely employed as a chemical intermediate in the synthesis of advanced agrochemicals and pharmaceutical compounds. With a molecular formula of C7H4BrFO and a molecular weight of 203.01 g/mol, this compound features both bromo and fluoro substituents on the benzene ring, enabling versatile reactivity in cross-coupling and electrophilic substitution reactions.

Specifications

Molecular FormulaC7H4BrFO
Molecular Weight203.008 g/mol
Density1.67 g/cm³
Melting Point28–33 °C
Boiling Point138–139 °C
Flash Point90 °C
Refractive Index1.574
AppearanceWhite powder
Assay (Purity)≥99.0% (typical result: 99.53%)

Industrial Applications

This compound serves primarily as a critical building block in the production of synthetic pyrethroid insecticides, notably Cyfluthrin. Its dual halogen functionality allows for selective derivatization, making it indispensable in multi-step organic syntheses requiring regiochemical control.

  • Used in Suzuki, Stille, and other palladium-catalyzed cross-coupling reactions
  • Enables construction of complex fluorinated aromatic scaffolds
  • Suitable for R&D and large-scale manufacturing under GMP-compliant conditions

Stored in a cool, well-ventilated area away from heat and incompatible materials, 3-Bromo-4-fluorobenzaldehyde is typically packed in 25 kg drums or customized packaging per client specifications.