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Organic Intermediate/Raw materials

 1,3-Propanesultone CAS 1120-71-4

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Product Name: 1,3-Propanesultone


1,2-Oxathiolane 2,2-dioxide; 3-Hydroxy-1-propanesulfonic acid gamma-sultone; Propane sultone

Molecular Structure:


Item Specifications
CAS No. 1120-71-4
Molecular Formula C5H6O3S
Molecular Weight 122.143
Appearance White or Colorless to Light yellow liquid
    Density (25℃,g/cm3) 1.392
Refractive index (25℃) 1.4585
    Melting point (℃) 30-33
Boiling point (℃) 180(30mm Hg)
Flash point (℃) 110
Purity (%), GC ≥99.90
Moisture (ppm) ≤100
Acid value ≤50

Packing: 200kg/Drum



It is mainly used as power battery additives. It can reduce the embedding of battery solvents into electrodes. Extend electrode life, improve battery cycling efficiency, increase battery cycling times, and increase battery service life.


It is mainly used as Excellent film-forming additives in lithium-ion batteries.


Stored in a cool dry and ventilated place.



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