Intermediates

3-Fluoro-4-methoxybenzoic acid

  • CAS No.403-20-3
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 3-Fluoro-4-methoxybenzoic acid (CAS 403-20-3), a versatile fluorinated aromatic intermediate for advanced organic synthesis.

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Product Technical Details

Product Overview

3-Fluoro-4-methoxybenzoic acid is a high-value fluorinated aromatic carboxylic acid widely employed as a key building block in the pharmaceutical and agrochemical industries. With its unique combination of electron-withdrawing fluorine and electron-donating methoxy substituents on the benzoic acid scaffold, this compound offers exceptional reactivity and selectivity in cross-coupling reactions, heterocycle formation, and functional group interconversions. Our product is manufactured under stringent quality control protocols to ensure consistent performance in complex synthetic pathways.

Specifications

Molecular FormulaC8H7FO3
Molecular Weight170.14 g/mol
CAS Number403-20-3
AppearanceOff-white powder
Assay≥98.0%
Moisture≤0.5%
Melting Point211–213°C
Density1.568 g/cm³
Boiling Point352.5°C
Flash Point167°C

Industrial Applications

As a specialty fluoroaromatic intermediate, 3-Fluoro-4-methoxybenzoic acid serves critical roles in multi-step syntheses requiring precise electronic and steric tuning. Its primary applications include:

  • Pharmaceutical R&D: Precursor for novel active pharmaceutical ingredients (APIs) targeting metabolic and neurological pathways.
  • Agrochemical Innovation: Building block for next-generation herbicides and fungicides with enhanced environmental profiles.
  • Material Science: Intermediate in the production of liquid crystals and specialty polymers.
  • Chemical Research: Valuable substrate for Suzuki, Buchwald-Hartwig, and other palladium-catalyzed transformations.

Stored in a cool, dry, and well-ventilated area, this compound maintains stability under recommended conditions. Standard packaging is 25 kg per drum, with custom options available to meet specific logistical or regulatory requirements.