Description

5-(Lithiooxysulfonyl)Isophthalic Acid Dimethyl Ester is a specialized organosulfur and organolithium compound that serves as a high-value synthetic intermediate. Its unique structure, featuring both a sulfonyl lithium and diester functional groups, makes it a versatile building block for constructing complex molecular architectures. This compound is primarily sought after by R&D chemists and process development scientists in the pharmaceutical and advanced materials sectors for creating novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for sulfonamide-based therapeutics.
• Polymer Chemistry: Monomer or co-monomer for the production of specialty polyesters and polyamides with unique sulfonyl-linked side chains, imparting specific thermal or solubility properties.
• Ligand Synthesis: Precursor for creating sophisticated ligands used in catalysis and metal-organic frameworks (MOFs).
• Agrochemical Research: Intermediate in the development of new generation herbicides and fungicides that utilize the isophthalate sulfonyl moiety.
• Material Science: Used in the research and development of organic electronic materials and photoactive compounds.
• Cross-coupling Reactions: Serves as an electrophilic or nucleophilic coupling partner in palladium-catalyzed and other metal-mediated reactions.

Basic Information

Item	Details
Product Name	5-(Lithiooxysulfonyl)Isophthalic Acid Dimethyl Ester
CAS No.	68823-78-9
Molecular Formula	C10H9LiO7S
Molecular Weight	280.18 g/mol
Synonyms	Dimethyl 5-(lithiooxysulfonyl)isophthalate; 5-(Lithiooxysulfonyl)-1,3-benzenedicarboxylic Acid Dimethyl Ester; Isophthalic Acid, 5-(lithiooxysulfonyl)-, Dimethyl Ester; Lithium 5-(dimethoxycarbonyl)benzenesulfonate; 5-Sulfolithioxy Isophthalic Acid Dimethyl Ester
EINECS	Contact for details

Quality Control

Every batch of 5-(Lithiooxysulfonyl)Isophthalic Acid Dimethyl Ester is manufactured and tested under strict quality management protocols to ensure consistency and reliability for your critical syntheses. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as purity, identity, and impurity profile. Our quality systems are designed to support cGMP and ISO standards for advanced chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is moisture-sensitive (hygroscopic) and may be sensitive to air (easily oxidized). For long-term storage, consider maintaining under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Heavy Metals	≤ 20 ppm

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