Description

Dimethyl Isophthalate is a high-purity diester of isophthalic acid, serving as a critical intermediate in advanced polymer synthesis. Its primary commercial value lies in its role as a monomer for producing high-performance, thermally stable polyesters and engineering plastics. This compound is essential for manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance material properties such as durability and heat resistance.

Application

• Polymer & Plasticizer Intermediate: A key monomer for synthesizing high-performance polyesters, polycarbonates, and plasticizers.
• Engineering Plastics Production: Used in the manufacture of thermally stable and mechanically robust engineering plastics.
• Specialty Coatings & Resins: Serves as a building block for alkyd resins and coatings requiring excellent adhesion and chemical resistance.
• Pharmaceutical & Agrochemical Synthesis: Acts as a versatile intermediate in the synthesis of active pharmaceutical ingredients (APIs) and agrochemicals.
• Dye & Pigment Manufacturing: Utilized in the production of certain dyes and organic pigments.
• Liquid Crystal Polymers (LCPs): A potential monomer for creating high-performance LCPs used in electronics.

Basic Information

Product Name	Dimethyl Isophthalate
CAS No.	1459-93-4
Molecular Formula	C10H10O4
Molecular Weight	194.18 g/mol
Synonyms	Dimethyl 1,3-Benzenedicarboxylate; Isophthalic Acid Dimethyl Ester; 1,3-Benzenedicarboxylic Acid Dimethyl Ester; Methyl Isophthalate; DMIP
EINECS	215-950-6

Quality Control

Our Dimethyl Isophthalate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile analysis, to ensure it meets exacting specifications for industrial and fine chemical applications. Certificates of Analysis (COA) documenting these results 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 99.0%
Melting Point	67 - 70 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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