Description

3,4,5-Trimethoxyphenylacetic Acid is a versatile aromatic carboxylic acid derivative characterized by its trimethoxy-substituted phenyl ring. This compound serves as a critical pharmaceutical intermediate and a valuable building block in organic synthesis, prized for its defined chemical structure that enables precise molecular construction. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and fine chemical sectors for developing new active compounds and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Organic Synthesis Building Block: Used in coupling reactions, esterifications, and amide formations to create novel chemical entities.
• Agrochemical Research: Employed in the development and research of new herbicides, fungicides, and plant growth regulators.
• Fine Chemical Production: Integral to manufacturing specialty chemicals, dyes, and advanced polymeric materials.
• Biochemical Research: Used as a standard or reagent in metabolic pathway studies and enzymatic research.
• Academic & Industrial R&D: Serves as a starting material for novel compound libraries in medicinal chemistry and material science projects.

Basic Information

Product Name	3,4,5-Trimethoxyphenylacetic Acid
CAS No.	951-82-6
Molecular Formula	C11H14O5
Molecular Weight	226.23 g/mol
Synonyms	(3,4,5-Trimethoxyphenyl)acetic Acid; 2-(3,4,5-Trimethoxyphenyl)acetic Acid; TMAA; NSC 403169; Gallic Acid Trimethyl Ether Acetic Acid; β-(3,4,5-Trimethoxyphenyl)acetic Acid
EINECS	Contact for details

Quality Control

Our 3,4,5-Trimethoxyphenylacetic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	118°C - 122°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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