Description

3-Methoxy-5-Methylbenzeneacetic Acid is a versatile aromatic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique substitution pattern on the benzene ring makes it a valuable intermediate for creating compounds with specific steric and electronic properties. This high-purity chemical is essential for research and development, as well as commercial production, in the pharmaceutical and agrochemical sectors.

Application

• Pharmaceutical Intermediate: Key precursor 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 manufacture of herbicides, fungicides, and plant growth regulators, leveraging its aromatic backbone for bioactivity.
• Liquid Crystal & OLED Materials: Serves as a starting material for synthesizing advanced organic electronic materials and liquid crystal compounds.
• Fine Chemical Production: Employed in the preparation of dyes, pigments, and specialty polymers where its methoxy and methyl groups modify solubility and color properties.
• Organic Synthesis Building Block: Utilized in academic and industrial R&D for constructing complex molecules via reactions at the carboxylic acid or aromatic ring.
• Fragrance & Flavor Intermediate: Acts as a precursor for certain aroma chemicals, contributing to musk or woody scent profiles after further chemical modification.

Basic Information

Product Name	3-Methoxy-5-Methylbenzeneacetic Acid
CAS No.	51028-96-7
Molecular Formula	C10H12O3
Molecular Weight	180.20 g/mol
Synonyms	2-(3-Methoxy-5-methylphenyl)acetic Acid; 3-Methoxy-5-methylbenzeneacetic Acid; 3-Methoxy-5-methylphenylacetic Acid; (3-Methoxy-5-methylphenyl)acetic Acid; 3-Methoxy-5-methylbenzene acetic acid; 3-Methoxy-5-methyl-benzenacetic acid; 51028-96-7; 2-(3-Methoxy-5-methylphenyl)ethanoic Acid
EINECS	Contact for details

Quality Control

Our 3-Methoxy-5-Methylbenzeneacetic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with customer specifications and industry standards for fine chemical intermediates.

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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 100 °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.