Description

Tetramethylterephthalic Acid (CAS NO 14458-05-0) is a high-purity aromatic dicarboxylic acid derivative, serving as a critical advanced intermediate in specialty polymer synthesis. Its value lies in its unique tetramethyl-substituted structure, which imparts enhanced solubility and processability in high-performance material formulations. This compound is essential for R&D and production within the pharmaceutical, agrochemical, and advanced polymer industries, where precise molecular architecture is required.

Application

• Polymer Intermediate: Key monomer for synthesizing specialty polyesters, polyamides, and liquid crystal polymers (LCPs) with modified thermal and mechanical properties.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs), particularly those requiring rigid, substituted aromatic cores.
• Agrochemical Synthesis: Serves as a building block for advanced herbicides and fungicides, leveraging its stable aromatic structure.
• Organic Synthesis & Research: A valuable reagent for constructing complex organic molecules in academic and industrial R&D laboratories.
• Coating & Resin Formulations: Imparts rigidity and stability to high-performance industrial coatings and specialty resin systems.
• Material Science: Investigated for use in metal-organic frameworks (MOFs) and other advanced functional materials.

Basic Information

Product Name	Tetramethylterephthalic Acid
CAS No.	14458-05-0
Molecular Formula	C12H14O4
Molecular Weight	222.24 g/mol
Synonyms	2,3,5,6-Tetramethylterephthalic Acid; 2,3,5,6-Tetramethylbenzene-1,4-dicarboxylic Acid; Durene-1,4-dicarboxylic Acid; 1,4-Dicarboxy-2,3,5,6-tetramethylbenzene; TMT Acid; Tetramethyl-1,4-benzenedicarboxylic Acid
EINECS	Contact for details

Quality Control

Our Tetramethylterephthalic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and high purity, meeting the specifications required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment 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 (typically 15-25°C). Keep away from strong oxidizing agents and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.