Description

Propylene Sulfite (CAS 1469-73-4) is a high-purity cyclic sulfite ester with the molecular formula C₃H₆O₃S and IUPAC name 4-methyl-1,3,2-dioxathiolane 2-oxide. This specialized chemical is widely utilized in advanced electrochemical applications, particularly as a stabilizing additive in lithium-ion battery electrolytes. Its unique cyclic structure enhances ionic conductivity while improving thermal and electrochemical stability. Available in rigorously controlled purity grades, our Propylene Sulfite is synthesized under stringent conditions to ensure minimal impurities, making it ideal for research and industrial applications requiring precise performance characteristics. Suitable for use in inert atmospheres due to its moisture sensitivity, this compound is packaged under nitrogen to maintain integrity.

Properties

• CAS Number: 1469-73-4
• Complexity: 92.2
• IUPAC Name: 4-methyl-1,3,2-dioxathiolane 2-oxide
• InChI: InChI=1S/C3H6O3S/c1-3-2-5-7(4)6-3/h3H,2H2,1H3
• InChI Key: SJHAYVFVKRXMKG-UHFFFAOYSA-N
• Exact Mass: 122.00376522
• Molecular Formula: C3H6O3S
• Molecular Weight: 122.15
• SMILES: CC1COS(=O)O1
• Topological: 54.7
• Monoisotopic Mass: 122.00376522
• Synonyms: 1469-73-4, Propylene sulfite, 1,2-Propanediol sulfite, AI3-22919, SULFUROUS ACID, CYCLIC ESTER with 1,2-PROPANEDIOL, sjhayvfvkrxmkg-uhfffaoysa-n, 4-Methyl-1,3,2-dioxathiolane 2-oxide, 1,3,2-Dioxathiolane, 4-methyl-, 2-oxide, Cyclic propylene sulfite, Propane-1,2-cyclic sulfite, 1,2-Propylene glycol sulfite, Propylene sulfite (C3H6O2)SO, Sulfurous acid, cyclic propylene ester, 1,2-Propanediol, cyclic sulfite, NSC 44145, NSC 525703, 4-METHYL-1,3,2??-DIOXATHIOLAN-2-ONE, 40811-14-1, 1,2-Propyleneglycol Sulfite, WLN: T6OSOTJ BO, Sulfurous acid,2-propanediol, 1,3,2-Dioxathiolane, 4-methyl-, 2-oxide, trans-, Propane 1,2-Cyclic Sulfite, 1,2-Dioxathiolane, 4-methyl-, 2-oxide, MFCD00041209, 4-Methyl-1,3,2-dioxathiolane2-oxide, 1,2-propylene sulfite, SCHEMBL126716, 1,2-Propanediol Cyclic Sulfite, CHEMBL1980710, DTXSID80932956, NSC44145, NSC-44145, NSC525703, AKOS006273771, 1,2-Propyleneglycol sulfite, >=98%, NSC-525703, AS-64052, NCI60_004285, 4-Methyl-1,3,2-dioxathiolane 2-oxide #, DB-241968, M2471, (4R)-4-methyl-1,3,2-dioxathiolane 2-oxide, (4S)-4-methyl-1,3,2-dioxathiolane 2-oxide, 4-Methyl-1,3,2lambda~4~-dioxathiolan-2-one, D91602, 1006381-02-7, 221370-80-5

Application

Propylene Sulfite serves as a critical electrolyte additive in lithium-ion batteries, where it improves SEI (Solid Electrolyte Interphase) formation and enhances cycle life. It is also employed in organic synthesis as a sulfonation agent for sensitive substrates. Researchers utilize this compound in the development of high-voltage battery systems due to its oxidative stability.

Safety and Hazards

GHS Hazard Statements

• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264+P265, P280, P305+P351+P338, and P337+P317

Hazard Classes and Categories

• Eye Irrit. 2 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.