Description

4-Methylphenylacetic Acid is a versatile aromatic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its value lies in providing a functionalized phenylacetic acid scaffold with a methyl substituent, enabling precise molecular modifications for performance-driven applications. This compound is essential for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs), other active pharmaceutical ingredients (APIs), and various drug candidates.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its aromatic backbone for bioactive molecule design.
• Fine Chemical & Fragrance Ingredient: Serves as a starting material for synthesizing complex esters and other derivatives used in perfumery and flavor compounds.
• Liquid Crystal & Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialized polymers and liquid crystal materials for electronic displays.
• Organic Synthesis & Research: A valuable reagent for homologation reactions, side-chain elongation, and as a general building block in academic and industrial R&D laboratories.

Basic Information

Product Name	4-Methylphenylacetic Acid
CAS No.	622-47-9
Molecular Formula	C9H10O2
Molecular Weight	150.17 g/mol
Synonyms	(4-Methylphenyl)acetic Acid; p-Tolylacetic Acid; 4-Tolylacetic Acid; p-Methylphenylacetic Acid; 2-(4-Methylphenyl)acetic Acid; 4-Methylbenzeneacetic Acid; NSC 2217; USAF EK-4960
EINECS	210-746-7

Quality Control

Our 4-Methylphenylacetic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting batch-specific results are 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 oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	92°C - 96°C
Loss on Drying	≤ 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.