Description

4-Fluoro-5-Methoxy-2-Methyl-Benzoic Acid is a high-purity fluorinated benzoic acid derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the precise substitution pattern that enables the introduction of both fluorine and methoxy groups into complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active pharmaceutical ingredients (APIs) and novel crop protection agents. The CAS number for this product is 1427382-28-2.

Application

This versatile fluorinated intermediate is designed for high-value synthesis applications, including:

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially in oncology and central nervous system (CNS) therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides and pesticides, leveraging the fluorine atom for enhanced bioactivity and metabolic stability.
• Liquid Crystal & OLED Material Research: Serves as a building block for advanced electronic materials due to its specific aromatic substitution pattern.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new fluorination chemistry and creating specialized chemical libraries.
• Custom Synthesis & Contract Manufacturing: An ideal starting material for custom synthesis projects requiring a specific, multi-substituted benzoic acid scaffold.

Basic Information

Product Name	4-Fluoro-5-Methoxy-2-Methyl-Benzoic Acid
CAS No.	1427382-28-2
Molecular Formula	C9H9FO3
Molecular Weight	184.16 g/mol
Synonyms	2-Methyl-4-fluoro-5-methoxybenzoic acid; 5-Methoxy-4-fluoro-o-toluic acid; Benzoic acid, 4-fluoro-5-methoxy-2-methyl-; 4-Fluoro-5-methoxy-2-methylbenzoic acid; 1427382-28-2; 4-Fluoro-5-methoxy-2-methyl-benzoic acid
EINECS	Contact for details

Quality Control

Our 4-Fluoro-5-Methoxy-2-Methyl-Benzoic Acid is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support cGMP compliance for pharmaceutical applications and can tailor purity grades to meet specific project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥97.0% (Standard Grade)
Purity (HPLC, Area %)	≥98.0%
Water Content (KF)	≤0.5%
Residue on Ignition	≤0.1%

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