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Sodium Trifluoromethanesulfinate
(CAS RN:2926-29-6 Product Number:T2033)


Sodium Trifluoromethanesulfinate
Synonym Langlois Reagent
Synonym Trifluoromethanesulfinic Acid Sodium Salt

General Information

Product Number T2033

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Purity/Analysis Method >95.0%(T)
Storage Temperature
M.F. / M.W. CF3NaO2S=156.05
CAS RN 2926-29-6
Related CAS RN
MDL Number MFCD03092989
  • Product Details
  • Safety & Regulations
  • Reference & Application


Purity(Sodium hypochlorite Method) min. 95.0 %


Reaxys-RN 3723394
PubChem SID 87577712


Signal Word Warning
Hazard Statements
  • H315
  • :Causes skin irritation.
  • H319
  • :Causes serious eye irritation.
Precautionary Statements
  • P264
  • :Wash hands and face thoroughly after handling.
  • P280
  • :Wear protective gloves, eye protection.
  • P302+P352+P332+P313+P362+P364
  • :If on skin: Wash with plenty of soap and water. If skin irritation occurs: Get medical advice or attention. Take off contaminated clothing and wash it before reuse.
  • P305+P351+P338+P337+P313
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice or attention.

Transport Information

HS Number 2904.10.3700


Manganese-catalyzed Aerobic Oxytrifluoromethylation of Styrene Derivatives


Typical Procedure:
To a solution of CF3SO2Na (128 mg, 0.8 mmol) in acetone (4 mL) are added styrenes (0.4 mmol) and then MnCl2·4H2O (16 mg, 0.08 mmol). The reaction mixture is stirred vigorously under an open atmosphere at room temperature for 12-48 h until the styrene substrate disappears by TLC monitoring. After completion of the reaction, the reaction mixture is poured into 5% aqueous NaHCO3 solution (20 mL) and then is diluted with ether (20 mL) and filtered through Celite. The filtrate is separated, and the aqueous layer is extracted by ether (20 mL). The organic phase is washed with saturated NaCl aqueous solution and then dried over sodium sulfate. After removal of the solvent in vacuo, the residue is purified by flash chromatography (hexane : ethyl acetate = 20 : 1 to 8 : 1) on silica gel to afford the corresponding ketone and alcohol products, respectively.


Radical Trifluoromethylation using Langlois Reagent


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