Description

4,5-Dimethyl-1,3,2-Dioxathiolane 2,2-Dioxide is a specialized cyclic sulfite ester, a high-purity chemical intermediate of significant interest in advanced organic synthesis. Its unique structure makes it a valuable precursor for constructing complex molecules, particularly in the development of pharmaceuticals and agrochemicals. This compound is essential for research and production chemists in fine chemical, pharmaceutical, and agrochemical industries seeking reliable, high-quality building blocks for complex synthesis.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for sulfur-containing heterocycles.
• Agrochemical Synthesis: Used as a precursor in the manufacture of advanced herbicides, fungicides, and insecticides.
• Ligand and Catalyst Development: Serves as a starting material for creating novel chiral ligands and organocatalysts used in asymmetric synthesis.
• Polymer Chemistry: Employed in the research and development of specialty polymers and functional materials.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organic reactions and methodologies.
• Fine Chemical Production: Integral to the multi-step synthesis of complex, high-value specialty chemicals.

Basic Information

Product Name	4,5-Dimethyl-1,3,2-Dioxathiolane 2,2-Dioxide
CAS No.	4440-89-5
Molecular Formula	C4H8O4S
Molecular Weight	152.17 g/mol
Synonyms	2,2-Dioxo-1,3,2-dioxathiolane, 4,5-dimethyl-; 4,5-Dimethyl-1,3,2-dioxathiolane-2,2-dioxide; 4,5-Dimethyl-1,3,2-dioxathiolane S,S-dioxide; Dimethyl Ethylene Sulfite; Ethylene Sulfite, Dimethyl-; Cyclic Sulfite Ester (Dimethyl Substituted)
EINECS	Contact for details

Quality Control

Every batch of 4,5-Dimethyl-1,3,2-Dioxathiolane 2,2-Dioxide is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards for fine chemical intermediates. Comprehensive analytical testing, including HPLC, GC, and NMR, is performed to guarantee identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment 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 controlled room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

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%

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