Description

Benzoic Acid, 2,3-Difluoro-4-Methyl-, Ethyl Ester (9Ci) is a high-purity fluorinated aromatic ester, serving as a versatile and critical building block in advanced organic synthesis. Its value lies in the strategic placement of fluorine atoms and the ethyl ester group, which are essential for modulating the electronic properties, lipophilicity, and metabolic stability of target molecules. This compound is primarily needed by R&D and production teams in the pharmaceutical, agrochemical, and specialty materials industries for developing new active ingredients and functional intermediates.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel active pharmaceutical ingredients (APIs), particularly in fluorinated drug candidates targeting CNS, anti-inflammatory, and anti-infective applications.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and pesticides, where the fluorine atoms enhance biological activity and environmental stability.
• Liquid Crystal & OLED Materials: Serves as a precursor for fluorinated components in electronic display materials and organic light-emitting diodes (OLEDs), improving charge transport and device efficiency.
• Polymer Modification: Acts as a monomer or additive for creating specialty polymers with enhanced chemical resistance, thermal stability, and surface properties.
• Organic Synthesis Building Block: Employed in cross-coupling reactions, esterifications, and fluorination chemistry to construct complex molecular architectures in academic and industrial research.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized fluorinated dyes and pigments that offer superior lightfastness and color properties.

Basic Information

Item	Detail
Product Name	Benzoic Acid, 2,3-Difluoro-4-Methyl-, Ethyl Ester (9Ci)
CAS No.	773135-56-1
Molecular Formula	C10H10F2O2
Molecular Weight	200.18 g/mol
Synonyms	Ethyl 2,3-Difluoro-4-methylbenzoate; 2,3-Difluoro-4-methylbenzoic Acid Ethyl Ester; 4-Methyl-2,3-difluorobenzoic Acid Ethyl Ester; 773135-56-1; Benzoic acid, 2,3-difluoro-4-methyl-, ethyl ester; Ethyl 4-methyl-2,3-difluorobenzoate
EINECS	Contact for details

Quality Control

Our Benzoic Acid, 2,3-Difluoro-4-Methyl-, Ethyl Ester (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 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.