Description

1,4-Benzenedicarboxylic Acid, 2,3-Dihydroxy-, Monomethyl Ester (9Ci) is a high-purity, functionalized terephthalate derivative with significant potential as a key synthetic intermediate. This compound matters for its unique molecular structure, offering both a carboxylic acid ester and two phenolic hydroxyl groups, which enables precise chemical modifications for advanced material synthesis. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and high-performance monomers.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block for the synthesis of novel drug candidates, particularly in creating complex molecules with specific stereochemistry and functionality.
• Agrochemical Synthesis: Used in the research and development of advanced herbicides, fungicides, and plant growth regulators, leveraging its reactive sites for structural diversification.
• Specialty Polymer Monomer: Acts as a functional monomer for producing high-performance polyesters, polyamides, or epoxy resins with enhanced thermal stability, adhesion, or chemical resistance.
• Ligand and Chelating Agent Precursor: The adjacent hydroxyl and ester groups make it a valuable starting material for synthesizing sophisticated ligands used in catalysis and metal ion sequestration.
• Dye and Pigment Intermediate: Employed in the synthesis of complex organic colorants and optical brighteners for industrial applications.
• Cross-linking Agent: Utilized in formulations for coatings, adhesives, and composites where its multiple functional groups can create robust polymer networks.
• Academic and Industrial Research: A valuable reagent for methodological studies in organic synthesis and material science.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, 2,3-Dihydroxy-, Monomethyl Ester (9Ci)
CAS No.	364364-87-4
Molecular Formula	C10H10O6
Molecular Weight	226.18 g/mol
Synonyms	Monomethyl 2,3-dihydroxyterephthalate; 2,3-Dihydroxyterephthalic Acid Monomethyl Ester; 4-(Methoxycarbonyl)-2,3-dihydroxybenzoic Acid; Terephthalic Acid, 2,3-Dihydroxy-, Monomethyl Ester; 2,3-Dihydroxy-1,4-benzenedicarboxylic Acid Monomethyl Ester; 1,4-Benzenedicarboxylic acid, 2,3-dihydroxy-, monomethyl ester (9CI); 2,3-Dihydroxyterephthalic acid 1-methyl ester
EINECS	Contact for details

Quality Control

Our 1,4-Benzenedicarboxylic Acid, 2,3-Dihydroxy-, Monomethyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency, meeting the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with detailed chromatographic and spectroscopic data 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 place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to minimize exposure to 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)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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