Description

Dimethyl 4-Methylisophthalate is a high-purity diester derivative of isophthalic acid, serving as a critical organic intermediate and building block in advanced chemical synthesis. Its value lies in its consistent quality and reactivity, which are essential for producing high-performance polymers and fine chemicals. This product is primarily needed by manufacturers in the polymer, pharmaceutical, and specialty chemical industries seeking reliable raw materials for condensation reactions and material science applications.

Application

• Polymer Intermediate: A key monomer for the synthesis of specialized polyesters and polyamides, contributing to thermal stability and mechanical properties.
• Pharmaceutical Synthesis: Used as a versatile building block in the multi-step synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules.
• Liquid Crystal Polymers (LCPs): Acts as a precursor in the production of high-performance LCPs used in electronics and advanced materials.
• Plasticizer and Additive Precursor: Employed in the manufacture of specialty plasticizers and polymer additives.
• Fine Chemical Production: Serves as an intermediate for dyes, pigments, and other high-value specialty chemicals.
• Cross-linking Agent: Utilized in resin and coating formulations to enhance durability and chemical resistance.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new polymeric materials and organic reactions.

Basic Information

Product Name	Dimethyl 4-Methylisophthalate
CAS No.	23038-61-1
Molecular Formula	C11H12O4
Molecular Weight	208.21 g/mol
Synonyms	4-Methylisophthalic Acid Dimethyl Ester; Dimethyl 4-Methylbenzene-1,3-dicarboxylate; 1,3-Benzenedicarboxylic acid, 4-methyl-, dimethyl ester; 4-Methyl-1,3-benzenedicarboxylic acid dimethyl ester; Methyl 4-methylisophthalate; DMMIP
EINECS	Contact for details

Quality Control

Our Dimethyl 4-Methylisophthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity and identity, supporting its use in sensitive applications. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

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 standard
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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