Description

4-Methoxyisophthalic Acid is a high-purity aromatic dicarboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its unique methoxy-substituted structure offers distinct reactivity and physical properties, making it invaluable for creating specialized polymers and fine chemicals. This compound is essential for R&D chemists and production engineers in the pharmaceutical, agrochemical, and high-performance polymer industries seeking to develop novel materials with tailored functionalities.

Application

• Pharmaceutical Intermediate: A key synthon for the development of active pharmaceutical ingredients (APIs), particularly in creating complex molecular architectures.
• Polymer & Resin Synthesis: Used as a monomer for producing specialty polyesters, polyamides, and liquid crystal polymers (LCPs) with enhanced thermal and mechanical properties.
• Agrochemicals: Serves as a precursor in the synthesis of advanced herbicides, fungicides, and plant growth regulators.
• Dye & Pigment Manufacturing: Acts as an intermediate for creating methoxy-functionalized organic dyes and colorants.
• Coating & Adhesive Formulations: Incorporated to modify the performance characteristics of industrial coatings and adhesives.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and material science applications.
• Coordination Chemistry: Can function as a ligand for metal-organic frameworks (MOFs) and other coordination complexes.

Basic Information

Product Name	4-Methoxyisophthalic Acid
CAS No.	2206-43-1
Molecular Formula	C9H8O5
Molecular Weight	196.16 g/mol
Synonyms	4-Methoxybenzene-1,3-dicarboxylic Acid; Isophthalic Acid, 4-Methoxy-; 1,3-Benzenedicarboxylic Acid, 4-Methoxy-; 4-Methoxy-m-phthalic Acid; 4-Methoxyisophthalicacid; 4-Methoxyisophthalic Acid (CAS 2206-43-1); 4-Methoxy-1,3-benzenedicarboxylic Acid
EINECS	218-638-9

Quality Control

Our 4-Methoxyisophthalic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for high-end synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent batch-to-batch quality for your critical processes.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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