Sodium methanesulfinate Chemical Properties

Melting point:

222-226 °C (dec.) (lit.)

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Methanol, Water (Slightly)

form 

Powder

color 

White to light beige

Water Solubility 

soluble

Sensitive 

Air Sensitive & Hygroscopic

BRN 

3565430

Stability:

Hygroscopic

InChI

InChI=1S/CH4O2S.Na.H/c1-4(2)3;;/h1H3,(H,2,3);;

InChIKey

LYPGDCWPTHTUDO-UHFFFAOYSA-M

SMILES

S(O)(=O)C.[NaH]

CAS DataBase Reference

20277-69-4(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22-20/21/22

Safety Statements 

36/37-24/25

RIDADR 

2811

WGK Germany 

3

PackingGroup 

III

HS Code 

29309090

Storage Class

11 - Combustible Solids

Hazard Classifications

Acute Tox. 4 Oral

MSDS

• Language:English Provider:Methanesulfinic acid sodium salt
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Sodium methanesulfinate Usage And Synthesis

Description

Sodium methanesulfinate is an aliphatic sodium sulfinate. Conjugate addition of sodium methanesulfinate to vinyl heterocycles has been described. Cross-coupling reaction between aryl boronic acid and sodium methanesulfinate has been studied. It can be used in the preparation of alkyl methyl sulfone and methyl bis(4-tolyl)sulfoniumtrifluoromethanesulfonate. It is also employed in the synthesis of two sulfonyl type reversible addition-fragmentation transfer (RAFT) agents such as benzyl methylsulfonyldithioformate and benzyl phenylsulfonyldithioformate. Moreover, it can be used for synthesizing cyclooxygenase-2 inhibitors.

Chemical Properties

White to light beige powder

Uses

Sodium methylsulfinate can be used to synthesize cyclooxygenase-2 inhibitors.

General Description

Sodium methanesulfinate is an aliphatic sodium sulfinate. Conjugate addition of sodium methanesulfinate to vinyl heterocycles has been described. Cross-coupling reaction between aryl boronic acid and sodium methanesulfinate has been studied. Its stock solution was prepared from methanesulfonic acid by adding one equivalent of sodium hydroxide and diluting it to 4M.

Synthesis

In a four-necked flask with a thermometer, stirrer, reflux condenser tube and nitrogen protection device, 35% (mass fraction, the same hereinafter) of sodium metabisulfite solution 326g was added, nitrogen protection, stirring was turned on, heated to 60-65.C, 90.6g of methacryloyl chloride was added dropwise to keep the reaction solution refluxing slightly. The pH was regulated in the range of 8 to 9 with sodium hydroxide solution during the reaction, and the reaction reached the end point when the reaction reached no methacryloyl chloride reflux. Add 50% (mass fraction) calcium chloride solution, stirring 10rain, so that the resulting calcium sulfate a calcium sulfite precipitation completely. Filter, get colorless transparent sulfonated liquid.

Reduced-pressure dehydration and concentration of sulfonated solution, when there are white crystals precipitated, stop heating, cooling, add appropriate amount of anhydrous ethanol, filtration to remove sodium chloride. The filtrate is heated, evaporated to remove the solvent, and the white solid product is sodium methane sulfinic acid crude product; the crude product is washed and recrystallized, and dried to get the finished product of sodium methane sulfinic acid.

Sodium methanesulfinate(20277-69-4)Related Product Information

• Diclofenac sodium
• Antirust agent T702
• Sodium chloride
• Trisodium phosphate
• Sodium chlorite
• Sodium hydroxide
• Sodium p-toluenesulfinate
• Sodium bicarbonate
• Sodium citrate
• 1-DODECANESULFONIC ACID SODIUM SALT
• Sodium lignosulfonate
• Sodium acetate
• Molasses
• Sodium benzoate
• 2-METHYL-2-PROPENE-1-SULFONIC ACID SODIUM SALT
• BENZENESULFINIC ACID SODIUM SALT
• Ethyl formate
• Sodium formate