Description

4-Fluorophenoxyacetic Acid is a versatile fluorinated aromatic building block of significant importance in advanced organic synthesis. Its molecular structure, featuring both a phenoxyacetic acid moiety and a fluorine substituent, makes it a critical intermediate for creating compounds with enhanced biological activity and specific physicochemical properties. This product is essential for research and development chemists in the pharmaceutical and agrochemical industries, where it is used to synthesize novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of active pharmaceutical ingredients (APIs), particularly in the synthesis of fluorinated drug candidates targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the production of advanced herbicides, pesticides, and plant growth regulators, where the fluorine atom can improve metabolic stability and bioavailability.
• Liquid Crystal & Material Science: Serves as a precursor in the synthesis of fluorinated liquid crystals and specialty polymers for electronic displays and advanced materials.
• Bioconjugation & Linker Chemistry: The carboxylic acid group enables its use as a linker molecule in bioconjugation techniques and the preparation of targeted molecular probes.
• Organic Synthesis Building Block: Employed in various name reactions (e.g., esterification, amidation) to introduce the 4-fluorophenoxyacetyl group into more complex molecular architectures.

Basic Information

Product Name	4-Fluorophenoxyacetic Acid
CAS No.	405-79-8
Molecular Formula	C8H7FO3
Molecular Weight	170.14 g/mol
Synonyms	(4-Fluorophenoxy)acetic Acid; 4-Fluorophenoxyethanoic Acid; p-Fluorophenoxyacetic Acid; 2-(4-Fluorophenoxy)acetic Acid; Acetic Acid, (p-Fluorophenoxy)-; NSC 403107; FPOAA
EINECS	206-970-2

Quality Control

Our 4-Fluorophenoxyacetic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the highest standards of purity and consistency for research and industrial use. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	142 - 146 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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