Description

1,3-Benzenedicarboxylic Acid, 4-Fluoro-, 3-Methyl Ester is a high-purity fluorinated aromatic ester, serving as a critical building block in advanced organic synthesis. This compound is valued for its unique molecular structure, which introduces both fluorine and ester functionalities to a benzene dicarboxylate core, enabling precise modifications in target molecules. It is primarily sought by research and development teams in the pharmaceutical and agrochemical industries for the creation of novel active ingredients and specialty polymers.

Application

• Pharmaceutical Intermediate: A key synthon for the development of fluorinated active pharmaceutical ingredients (APIs), where the fluorine atom can enhance metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides and pesticides, leveraging the fluorine substituent for improved efficacy and environmental profile.
• Liquid Crystal & Polymer Chemistry: Serves as a monomer or modifier in the synthesis of specialty polymers, liquid crystals, and advanced materials requiring specific dielectric or optical properties.
• Organic Electronic Materials: Investigated as a precursor for electron-transport materials or as a building block in molecular engineering for OLEDs and other electronic applications.
• Chemical Research & Development: Employed in academic and industrial labs for method development, catalysis studies, and as a standard in analytical chemistry.
• Dye & Pigment Intermediate: Functions as a fluorinated intermediate in the synthesis of specialized dyes and pigments with unique color fastness and spectral properties.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, 4-Fluoro-, 3-Methyl Ester
CAS No.	41684-09-7
Molecular Formula	C11H9FO4
Molecular Weight	224.19 g/mol
Synonyms	4-Fluoroisophthalic Acid 3-Methyl Ester; 3-(Methoxycarbonyl)-4-fluorobenzoic Acid; Methyl 4-Fluoro-3-(methoxycarbonyl)benzoate; 4-Fluoro-1,3-benzenedicarboxylic Acid 3-Methyl Ester; 4-Fluoroisophthalic Acid Monomethyl Ester; 3-Carbomethoxy-4-fluorobenzoic Acid
EINECS	Contact for details

Quality Control

Our 1,3-Benzenedicarboxylic Acid, 4-Fluoro-, 3-Methyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for all commercial and research quantities, supporting compliance in GMP-aligned applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

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	≤ 10 ppm

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