Description

Dimethyl 5-Methoxyisophthalate is a high-purity organic ester compound, serving as a critical building block in advanced chemical synthesis. Its value lies in its defined molecular structure, which provides a versatile platform for creating complex molecules with specific functional properties. This intermediate is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require reliable, high-quality raw materials for research and production.

Application

• Pharmaceutical Intermediate: A key synthon in the production of active pharmaceutical ingredients (APIs), particularly for compounds requiring a methoxy-substituted isophthalate core structure.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators where its aromatic ester functionality is incorporated into the final molecule.
• Liquid Crystal & OLED Material Precursor: Serves as a starting material for synthesizing complex organic molecules used in electronic displays and optoelectronic devices.
• Polymer & Resin Modifier: Employed in the synthesis of specialty polyesters and epoxy resins to modify thermal stability, solubility, and mechanical properties.
• Organic Synthesis & Research: A versatile reagent in academic and industrial R&D labs for constructing complex aromatic esters and exploring new synthetic pathways.
• Dye & Pigment Intermediate: Acts as a precursor in the synthesis of certain high-performance dyes and organic pigments.

Basic Information

Product Name	Dimethyl 5-Methoxyisophthalate
CAS No.	20319-44-2
Molecular Formula	C11H12O5
Molecular Weight	224.21 g/mol
Synonyms	5-Methoxyisophthalic Acid Dimethyl Ester; Dimethyl 5-Methoxybenzene-1,3-dicarboxylate; 1,3-Benzenedicarboxylic acid, 5-methoxy-, dimethyl ester; 5-Methoxy-1,3-benzenedicarboxylic acid dimethyl ester; Methyl 5-methoxyisophthalate; 5-Methoxyisophthalic acid, dimethyl ester; 5-Methoxybenzene-1,3-dicarboxylic acid dimethyl ester
EINECS	Contact for details

Quality Control

Our Dimethyl 5-Methoxyisophthalate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for sensitive applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product is light-sensitive and should be stored away from direct light exposure.

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	≤ 10 ppm

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