1,3,2-Dioxathiolane 2,2-Dioxide

• CAT Number: R057408
• CAS Number: 1072-53-3
• Molecular Formula: C2H4O4S
• Molecular Weight: 124.11
• Purity: ≥95%
• Synonyms: Ethylene Glycol Cyclic Sulfate; 1,2-Ethylene Sulfate; Ethylene Sulfate; NSC 526594
• Storage: Store at +4C
• IUPAC Name: 1,3,2-dioxathiolane 2,2-dioxide
• InChI: InChI=1S/C2H4O4S/c3-7(4)5-1-2-6-7/h1-2H2
• InChIKey: ZPFAVCIQZKRBGF-UHFFFAOYSA-N
• SMILES: C1COS(=O)(=O)O1

1,3,2-Dioxathiolane 2,2-dioxide（Cat No.:R057408）, also known as Ethylene sulfite, is a five-membered cyclic ester of ethylene glycol and sulfurous acid. This compound functions as an effective electrophilic sulfonating agent and is commonly used as a reagent or intermediate in organic synthesis. It plays a key role in the preparation of sulfonates and other sulfur-containing compounds. Additionally, due to its high dielectric constant and chemical stability, it is studied for applications in lithium-ion battery electrolytes. Supplied at high purity, it is ideal for research in synthetic chemistry and materials science.