Intermediates

3-Fluoro-4-methoxyaniline

  • CAS No.366-99-4
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 3-Fluoro-4-methoxyaniline (CAS 366-99-4), a key fluorinated aromatic intermediate for advanced pharmaceutical synthesis.

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Product Technical Details

Product Overview

3-Fluoro-4-methoxyaniline is a high-value fluorinated aromatic amine widely employed as a critical building block in the development and large-scale manufacturing of complex pharmaceutical APIs. With its unique substitution pattern—featuring both fluoro and methoxy groups ortho and para to the amino functionality—this compound offers exceptional regioselectivity and electronic tuning for downstream heterocyclic construction. Our product is manufactured under stringent quality control protocols to ensure consistent performance in demanding synthetic applications.

Specifications

Molecular FormulaC7H8FNO
Molecular Weight141.14 g/mol
CAS Number366-99-4
AppearanceWhite Crystalline Powder
Purity≥99.0%
Melting Point81–83 °C
Boiling Point135 °C at 18 mm Hg
Density1.176 g/cm³
Refractive Index1.531
Flash Point>110 °C

Industrial Applications

This fluorinated aniline derivative serves primarily as a versatile intermediate in medicinal chemistry and fine chemical production. Its strategic molecular architecture enables efficient synthesis of bioactive scaffolds used in neurological therapeutics, anti-infective agents, and other advanced organic synthesis pathways. Due to its electron-donating methoxy group and electron-withdrawing fluoro substituent, it facilitates selective electrophilic substitution and cross-coupling reactions essential for constructing complex drug molecules.

  • Ideal for Suzuki, Buchwald-Hartwig, and diazotization-based transformations
  • Enables precise modulation of pharmacokinetic properties in lead optimization
  • Compatible with standard handling protocols for aromatic amines in GMP environments

Handling and Storage

Store in a tightly sealed container in a cool, dry, and well-ventilated area, away from heat, sparks, open flames, and incompatible materials such as strong oxidizers or acids. Use appropriate personal protective equipment during handling to minimize exposure risk.