Description

4-Ethoxyphenylacetic Acid is a versatile aromatic carboxylic acid derivative, serving as a key organic intermediate in advanced chemical synthesis. Its value lies in the ethoxy-substituted phenylacetic acid structure, which provides a reactive site for further functionalization and incorporation into more complex molecules. This compound is essential for research and development chemists and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to build novel active compounds.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the research and production of herbicides, fungicides, and plant growth regulators, leveraging its aromatic backbone.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and specialty chemicals requiring a phenoxyacetic acid moiety.
• Liquid Crystal & Polymer Chemistry: Acts as a monomer or intermediate in the development of advanced materials with specific optical or electronic properties.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D labs for constructing complex organic molecules through reactions like esterification, amidation, and coupling.
• Fragrance & Flavor Ingredient Synthesis: Utilized as a starting material for creating specific aromatic compounds used in perfumery and flavorings.

Basic Information

Product Name	4-Ethoxyphenylacetic Acid
CAS No.	4919-33-9
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	(4-Ethoxyphenyl)acetic Acid; p-Ethoxyphenylacetic Acid; 2-(4-Ethoxyphenyl)acetic Acid; 4-Ethoxybenzeneacetic Acid; NSC 403714; 4-Ethoxy-α-toluic Acid; 4-Ethoxybenzylcarboxylic Acid; 4-Ethoxybenzenacetic Acid
EINECS	225-540-8

Quality Control

Our 4-Ethoxyphenylacetic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment. We adhere to cGMP principles where applicable, ensuring reliability for critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and handling properties. Keep away from incompatible materials such as strong oxidizing agents, strong bases, and strong acids.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	85 - 89 °C
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 20 ppm

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