Trimethylene Sulfite (TMS) CAS 4176-55-0 1,3,2-Dioxathiane 2-oxide Purity >99.9% (GC) Electrolyte Additive
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of Trimethylene Sulfite (TMS), also known as 1,3,2-Dioxathiane 2-oxide, (CAS: 4176-55-0) with high quality, commercial production. Ruifu Chemical offers a wide range of lithium-ion battery materials such as electrolyte raw materials and cathode materials. Welcome to order. Please contact: alvin@ruifuchem.com
Chemical Name | Trimethylene Sulfite |
Synonyms | TMS; 1,3,2-Dioxathiane 2-oxide; 1,3-Propylene Sulfite; 1,3-Propanediol Cyclic Sulfite |
CAS Number | 4176-55-0 |
CAT Number | RF-PI1789 |
Stock Status | In Stock, Production Scale Up to Tons |
Molecular Formula | C3H6O3S |
Molecular Weight | 122.14 |
Melting Point | -14℃ |
Boiling Point | 54℃/8mmHg(lit.) |
Brand | Ruifu Chemical |
Item | Specifications |
Appearance | Colorless Liquid |
Purity / Analysis Method | >99.9% (GC) |
Melting Point | 31.0~33.0℃ |
Infrared Spectrum | Conforms to Structure |
Refractive Index | n20/D 1.451~1.455 |
Specific Gravity (20/20℃) | 1.350~1.354 |
Test Standard | Enterprise Standard |
Usage | Used as Electrolyte Additive for Lithium Secondary Battery |
Package: Fluorinated Bottle, 25kg/Drum, or according to customer's requirement
Storage Condition: Store in sealed containers at cool and dry place; Protect from light and moisture


Trimethylene Sulfite (TMS) (CAS: 4176-55-0) is used as electrolyte additive for lithium secondary battery, which can improve the low temperature performance of electrolyte and prevent PC molecules from embedding into graphite electrode; Trimethylene Sulfite is used as high temperature additive for electrolytes in Lithium ion batteries. It improves the decomposition resistance of the electrolyte. Used in organic synthesis, pharmaceutical intermediates.
-
Trimethylene Sulfite (TMS) CAS 4176-55-0 1,3,2-...
-
1,4-Butane Sultone (1,4-BS) CAS 1633-83-6 Purit...
-
2,2-Difluoroethyl Acetate (DFEA) CAS 1550-44-3 ...
-
1,3,6-Hexanetricarbonitrile (HTCN) CAS 1772-25-...
-
Bis(2,2,2-trifluoroethyl) Carbonate (TFEC) CAS ...
-
Chloroethylene Carbonate (CEC) CAS 3967-54-2 Pu...
-
Cyclohexylbenzene (CHB) Phenylcyclohexane CAS 8...
-
Diethyl Carbonate (DEC) CAS 105-58-8 Purity >99...
-
Dimethyl Sulfite (DS) CAS 616-42-2 Purity >99.5...
-
1,3-Propanediol Cyclic Sulfate (TS) CAS 1073-05...
-
1,3-Propanesultone (1,3-PS) CAS 1120-71-4 Purit...
-
Ethyl Methyl Carbonate (EMC) CAS 623-53-0 Purit...
-
Ethylene Glycol Bis(propionitrile) Ether (DENE)...
-
Ethylene Sulfate (DTD) CAS 1072-53-3 Purity >98...
-
Lithium Bis(trifluoromethanesulphonyl)imide (Li...
-
Lithium Bisoxalatodifluorophosphate (LiDODFP) C...