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Atomfair 4,5-Dimethyl-1,3,2-dioxathiolane 2-oxide sym-Dimethylethylene sulfite C4H8O3S

Description 4,5-Dimethyl-1,3,2-dioxathiolane 2-oxide (CAS No. 4440-90-8) is a high-purity cyclic sulfite ester with the molecular formula C4H8O3S . This specialized organic compound is widely utilized in electrolyte formulations , pharmaceutical intermediates , and coordination chemistry . Its unique cyclic structure and sulfite functional group make it an excellent candidate for lithium-ion battery additives , where it enhances electrode stability and electrolyte performance. Available in rigorously tested batches, this product meets the stringent demands of research laboratories and industrial applications . Each shipment is accompanied by comprehensive analytical data, including GC/MS, NMR, and HPLC purity reports , ensuring consistency and reliability…

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Description

Description

4,5-Dimethyl-1,3,2-dioxathiolane 2-oxide (CAS No. 4440-90-8) is a high-purity cyclic sulfite ester with the molecular formula C4H8O3S. This specialized organic compound is widely utilized in electrolyte formulations, pharmaceutical intermediates, and coordination chemistry. Its unique cyclic structure and sulfite functional group make it an excellent candidate for lithium-ion battery additives, where it enhances electrode stability and electrolyte performance. Available in rigorously tested batches, this product meets the stringent demands of research laboratories and industrial applications. Each shipment is accompanied by comprehensive analytical data, including GC/MS, NMR, and HPLC purity reports, ensuring consistency and reliability for your synthetic workflows.

  • CAS No: 4440-90-8
  • Molecular Formula: C4H8O3S
  • Molecular Weight: 136.17
  • Exact Mass: 136.01941529
  • Monoisotopic Mass: 136.01941529
  • IUPAC Name: 4,5-dimethyl-1,3,2-dioxathiolane 2-oxide
  • SMILES: CC1C(OS(=O)O1)C
  • Synonyms: 4,5-Dimethyl-1,3,2-dioxathiolane 2-oxide, 4440-90-8, sym-Dimethylethylene sulfite, 4,5-DIMETHYL-1,3,2??-DIOXATHIOLAN-2-ONE, 2,3-Butanediol, cyclic sulfite

Application

4,5-Dimethyl-1,3,2-dioxathiolane 2-oxide serves as a key additive in lithium-ion battery electrolytes, improving cycle life by forming stable SEI layers on anode surfaces. Researchers employ it as a building block in organic synthesis for sulfite-containing pharmacophores. In material science, it acts as a chelating agent for transition metal catalysts due to its oxygen-sulfur donor system.

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