Intermediates

5-Bromo-1,2,3-trifluorobenzene

  • CAS No.138526-69-9
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 5-Bromo-1,2,3-trifluorobenzene (CAS 138526-69-9), a key fluorinated aromatic intermediate for advanced pharmaceutical synthesis.

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Product Technical Details

Product Overview

5-Bromo-1,2,3-trifluorobenzene is a highly valuable fluorinated aromatic building block widely employed in the synthesis of complex pharmaceutical active pharmaceutical ingredients (APIs) and agrochemical compounds. With its unique substitution pattern featuring three adjacent fluorine atoms and a bromine handle at the 5-position, this compound offers exceptional reactivity for cross-coupling reactions such as Suzuki, Stille, and Buchwald-Hartwig aminations, enabling precise molecular construction in medicinal chemistry.

Specifications

Molecular FormulaC6H2BrF3
Molecular Weight210.98 g/mol
CAS Number138526-69-9
AppearanceColorless to pale yellow liquid
Purity≥99.0% (GC)
Density1.767 g/mL at 25 °C
Melting Point< -20 °C
Boiling Point47–49 °C at 60 mm Hg
Refractive Index1.482
Flash Point113 °F (45 °C)

Industrial Applications

This specialty intermediate is primarily utilized in the pharmaceutical industry as a critical precursor in multi-step syntheses. Its bromo group facilitates palladium-catalyzed transformations, while the trifluorinated benzene core imparts desirable metabolic stability, lipophilicity, and bioavailability to target molecules. It is also applicable in the development of advanced materials and electronic chemicals requiring fluorinated aromatic scaffolds.

  • Enables efficient C–C and C–N bond formation via modern catalytic methods
  • Serves as a versatile synthon for structure-activity relationship (SAR) studies
  • Compatible with standard handling protocols for moisture-sensitive organohalides

Stored under refrigerated conditions (2–8 °C) in tightly sealed containers, 5-Bromo-1,2,3-trifluorobenzene maintains stability and purity during transport and long-term storage. Supplied in 25 kg drums, it meets stringent quality standards required by global API manufacturers.