Description

4-Methoxy-3-Methylphenylacetic Acid is a versatile aromatic carboxylic acid derivative, serving as a key chiral intermediate and building block in advanced organic synthesis. Its value lies in its specific substitution pattern, which allows for the introduction of both methoxy and methyl functionalities onto a phenylacetic acid core, enabling precise molecular design. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs), targeted therapeutics, and other bioactive molecules.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators requiring specific aromatic acid motifs.
• Fine Chemical Production: Serves as a building block for dyes, pigments, liquid crystals, and other specialty organic compounds.
• Chiral Resolution Agent: Utilized in the preparation of chiral auxiliaries or resolving agents for stereoselective synthesis.
• Academic & R&D: A valuable reagent for methodological studies in organic chemistry, including coupling reactions and carboxylate derivatization.
• Material Science: Potential monomer or modifier in the synthesis of polymers with specific optical or electronic properties.

Basic Information

Product Name	4-Methoxy-3-Methylphenylacetic Acid
CAS No.	4513-73-9
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	(4-Methoxy-3-methylphenyl)acetic Acid; 2-(4-Methoxy-3-methylphenyl)acetic Acid; 3-Methyl-4-methoxyphenylacetic Acid; 4-Methoxy-m-toluic Acid (acetic acid form); o-Methylanisole-4-acetic Acid; 4-Methoxy-3-methylbenzeneacetic Acid; 4513-73-9; 4-Methoxy-3-methylbenzenacetic acid
EINECS	Contact for details

Quality Control

Our 4-Methoxy-3-Methylphenylacetic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR, to ensure it meets exacting specifications for research and industrial use. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids, bases, and oxidizing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

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	≤ 20 ppm

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