Description

3,4-Dimethoxyphthalic Acid is a high-purity aromatic dicarboxylic acid derivative, distinguished by its methoxy substituents. This compound serves as a critical advanced pharmaceutical intermediate and a versatile building block in organic synthesis. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries requiring precise molecular frameworks for active ingredient development.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug molecules, particularly those with fused ring systems or specific substitution patterns.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Used to create chelating agents and specialized ligands for metal-catalyzed reactions.
• Polymer Chemistry: Monomer for the production of specialty polyesters and polyamides with unique thermal or solubility properties.
• Dye and Pigment Intermediate: Serves in the synthesis of advanced colorants and optical materials.
• Research & Development: Valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	3,4-Dimethoxyphthalic Acid
CAS No.	518-90-1
Molecular Formula	C10H10O6
Molecular Weight	226.18 g/mol
Synonyms	3,4-Dimethoxybenzene-1,2-dicarboxylic Acid; 4,5-Dimethoxyphthalic Acid; Phthalic Acid, 3,4-Dimethoxy-; 1,2-Benzenedicarboxylic Acid, 3,4-Dimethoxy-; NSC 403107; 3,4-Dimethoxyphtalic Acid; 3,4-Dimethoxy-1,2-benzenedicarboxylic Acid
EINECS	208-264-9

Quality Control

Our 3,4-Dimethoxyphthalic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment supports applications requiring GMP-grade intermediates and high-reliability raw materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider conditions under an inert atmosphere to maintain optimal purity.

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	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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