Description

5,5-Dimethyl-1,3,2-dioxathiane 2-oxide (CAS: 1003-85-6) is a high-purity organosulfur compound with the molecular formula C₅H₁₀O₃S, designed for advanced research and industrial applications. This cyclic sulfonate ester features a stable dioxathiane backbone with two methyl groups at the 5-position, enhancing its steric and electronic properties. It is an essential intermediate in organic synthesis, particularly in the development of sulfonated polymers, electrolytes, and specialty chemicals. Available in rigorously controlled batches, this compound is characterized by its exceptional purity (>98%) and consistency, making it ideal for sensitive experimental workflows. Packaged under inert conditions to ensure long-term stability, it is supplied as a white crystalline solid with detailed technical documentation, including NMR, HPLC, and MSDS data.

Properties

• CAS Number: 1003-85-6
• Complexity: 120
• IUPAC Name: 5,5-dimethyl-1,3,2-dioxathiane 2-oxide
• InChI: InChI=1S/C5H10O3S/c1-5(2)3-7-9(6)8-4-5/h3-4H2,1-2H3
• InChI Key: MBWNQWVADQDHDU-UHFFFAOYSA-N
• Exact Mass: 150.03506535
• Molecular Formula: C5H10O3S
• Molecular Weight: 150.20
• SMILES: CC1(COS(=O)OC1)C
• Topological: 54.7
• Monoisotopic Mass: 150.03506535
• Synonyms: 1003-85-6, 5,5-dimethyl-1,3,2-dioxathiane 2-oxide, 5,6-Dihydro-5,5-dimethyl-4H-1,3,2-dioxathiin 2-oxide, 5,5-Dimethyl-1,3,2lambda4-dioxathian-2-one, 5,5-dimethyl-[1,3,2]dioxathiane 2-oxide, SCHEMBL2158878, MBWNQWVADQDHDU-UHFFFAOYSA-N, BAA00385, MFCD25954041, AKOS024462258, 2-oxo-5,5-dimethyl-1,3,2-dioxathiane, BS-52428, 5,5-dimethyl-1,3,2-dioxathiane-2-oxide, 5,5-Dimethyl-1,3,2?4-dioxathian-2-one, 5,5-Dimethyl-[1,3,2]dioxathiane-2-oxide, 5,5-dimethyl-1,3,2|E?-dioxathian-2-one, 5.5-dimethyl -1,3,2-dioxathiane-2-oxide, CS-0439591, EN300-244016, F71326

5,5-Dimethyl-1,3,2-dioxathiane 2-oxide is widely utilized as a key precursor in the synthesis of sulfonate-based electrolytes for lithium-ion batteries, owing to its ability to enhance thermal stability and ionic conductivity. Researchers also employ it as a building block for modified crown ethers and supramolecular catalysts. In material science, it serves as a crosslinking agent for polymer matrices, improving mechanical and chemical resistance. Its compatibility with green chemistry protocols makes it valuable for sustainable industrial processes.

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