Description

Dimethyl 5-(Methylsulfonyl)Isophthalate is a high-purity, functionalized aromatic diester derivative, serving as a critical advanced intermediate in modern organic synthesis. Its value lies in the reactive methylsulfonyl and ester groups, which enable precise chemical modifications for creating complex molecular architectures. This compound is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries, where it is used to build active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in developing sulfone-containing drug candidates.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific sulfone functionality.
• Liquid Crystal & Polymer Chemistry: Serves as a monomer or precursor for creating specialty polymers, liquid crystal displays (LCDs), and high-temperature engineering plastics.
• Organic Electronics: Employed in the research and development of organic semiconductors and electron-transport materials.
• Cross-Coupling Reactions: Acts as a versatile substrate in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) for constructing complex biaryl systems.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D focused on new synthetic methodologies and material science.

Basic Information

Product Name	Dimethyl 5-(Methylsulfonyl)Isophthalate
CAS No.	869529-29-3
Molecular Formula	C11H12O6S
Molecular Weight	272.27 g/mol
Synonyms	Dimethyl 5-(Methylsulfonyl)-1,3-benzenedicarboxylate; 5-(Methanesulfonyl)isophthalic Acid Dimethyl Ester; 1,3-Benzenedicarboxylic acid, 5-(methylsulfonyl)-, dimethyl ester; Isophthalic acid, 5-(methylsulfonyl)-, dimethyl ester
EINECS	Contact for details

Quality Control

Our Dimethyl 5-(Methylsulfonyl)Isophthalate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality commitment ensures the material meets the high standards required for research and commercial synthesis.

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 bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly closed to prevent moisture absorption.

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.