Description

2-Methoxyterephthalic Acid is a specialized aromatic dicarboxylic acid derivative, distinguished by the presence of a methoxy substituent on the benzene ring. This compound serves as a high-value chemical intermediate and building block in advanced organic synthesis, enabling the creation of complex molecular architectures. It is primarily utilized by manufacturers and R&D teams in the pharmaceutical, liquid crystal polymer (LCP), and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a functionalized terephthalate core.
• Liquid Crystal Polymer (LCP) Monomer: Used in the production of high-performance engineering thermoplastics for electronics, automotive, and aerospace components.
• Specialty Polymer Synthesis: Serves as a monomer or co-monomer for creating polyesters, polyamides, and other polymers with tailored thermal and mechanical properties.
• Organic Synthesis Building Block: Employed in research and development for constructing complex organic molecules, ligands, and metal-organic frameworks (MOFs).
• Dye and Pigment Intermediate: Used in the synthesis of specialized dyes and organic pigments where the methoxy group modifies color and solubility characteristics.
• Crosslinking Agent: Can function as a crosslinker in resin and coating formulations to enhance durability and chemical resistance.

Basic Information

Product Name	2-Methoxyterephthalic Acid
CAS No.	5156-00-3
Molecular Formula	C9H8O5
Molecular Weight	196.16 g/mol
Synonyms	2-Methoxybenzene-1,4-dicarboxylic Acid; 1,4-Benzenedicarboxylic acid, 2-methoxy-; Terephthalic acid, 2-methoxy-; 2-Methoxy-1,4-benzenedicarboxylic Acid; 2-Methoxy-p-phthalic Acid; 2-Methoxyterephthalate; 2-Methoxyterephthalic acid (CAS 5156-00-3)
EINECS	Contact for details

Quality Control

Our 2-Methoxyterephthalic Acid is produced under stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for advanced chemical synthesis. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); 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%
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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