Description

3-Methylphenylacetic Acid is a versatile aromatic carboxylic acid derivative, serving as a key synthetic intermediate in advanced organic chemistry. Its value lies in the reactive carboxylic acid group and the substituted phenyl ring, which allow for precise structural modifications to create complex target molecules. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators, leveraging its aromatic backbone.
• Fragrance and Flavor Precursor: Serves as a starting material for the manufacture of certain aromatic compounds used in perfumery.
• Organic Synthesis Reagent: Employed in peptide coupling reactions, esterifications, and as a precursor for more complex heterocyclic compounds.
• Liquid Crystal & Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialized polymers and liquid crystal materials.
• Research & Development: A valuable standard and reagent in academic and industrial R&D labs for method development and novel compound exploration.

Basic Information

Product Name	3-Methylphenylacetic Acid
CAS No.	621-36-3
Molecular Formula	C9H10O2
Molecular Weight	150.17 g/mol
Synonyms	(3-Methylphenyl)acetic Acid; m-Tolylacetic Acid; 3-Tolylacetic Acid; 2-(3-Methylphenyl)acetic Acid; meta-Tolylacetic Acid; Benzenacetic acid, 3-methyl-; 3-Methylbenzeneacetic Acid
EINECS	210-695-4

Quality Control

Our 3-Methylphenylacetic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all test results 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 place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	65 - 70 °C
Loss on Drying	≤ 1.0 %
Heavy Metals	≤ 20 ppm

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