Description

4-Fluoro-3-Methoxyphenylacetic Acid is a high-purity fluorinated aromatic building block of significant interest in advanced organic synthesis. Its value lies in its versatile structure, which incorporates both a reactive carboxylic acid group and a fluorine-substituted methoxyphenyl moiety, enabling precise molecular modifications. This compound is primarily sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of active pharmaceutical ingredients (APIs), particularly for compounds targeting the central nervous system or possessing anti-inflammatory properties.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators, where the fluorine atom enhances biological activity and environmental stability.
• Liquid Crystal & OLED Material Precursor: Serves as a building block for fluorinated aromatic components in electronic display materials and organic light-emitting diodes.
• Organic Synthesis & Chemical Research: Employed in academic and industrial R&D for constructing complex molecules, studying structure-activity relationships (SAR), and developing new synthetic methodologies.
• Fluorine Chemistry Studies: Acts as a model compound for investigating the effects of fluorine substitution on aromatic systems and reaction pathways.

Basic Information

Product Name	4-Fluoro-3-Methoxyphenylacetic Acid
CAS No.	78495-65-5
Molecular Formula	C9H9FO3
Molecular Weight	184.16 g/mol
Synonyms	2-(4-Fluoro-3-methoxyphenyl)acetic Acid; (4-Fluoro-3-methoxyphenyl)acetic Acid; 4-Fluoro-3-methoxybenzeneacetic Acid; 3-Methoxy-4-fluorophenylacetic Acid; 4-Fluoro-3-methoxy-α-toluic Acid; 4-Fluoro-3-methyloxyphenylacetic Acid; 78495-65-5; FMPAA
EINECS	Contact for details

Quality Control

Our production of 4-Fluoro-3-Methoxyphenylacetic Acid adheres to a strict quality management system to ensure batch-to-batch consistency and high purity. All materials undergo rigorous analytical testing, including HPLC, GC, and NMR, to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific impurity profiles is provided with each shipment. We support compliance with REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.