sodium methanethiosulphonate
- Product Name
- sodium methanethiosulphonate
- CAS No.
- 1950-85-2
- Chemical Name
- sodium methanethiosulphonate
- Synonyms
- odium methane thiosulfonate;sodium methanethiosulphonate;SodiuM Methanethiosulfonate 95%;SODIUM METHYL-1???DISULFENOYLOLATE;Methanesulfonothioic acid, sodium salt;Methanethiosulfonic acid S-sodium salt;Methanesulfonothioic acid S-sodium salt;Methanesulfonothioic acid sodium salt, Sodium methylthiosulfonate
- CBNumber
- CB9938786
- Molecular Formula
- CH3NaO2S2
- Formula Weight
- 134.15309
- MOL File
- 1950-85-2.mol
sodium methanethiosulphonate Property
- Melting point:
- 265 °C (dec.)
- storage temp.
- Inert atmosphere,Room Temperature
- solubility
- DMSO (Slightly), Methanol (Slightly), Water (Slightly)
- form
- Solid
- color
- White to Off-White
- Stability:
- Moisture Sensitive: Desiccate
- InChI
- InChI=1S/CH4O2S2.Na/c1-5(2,3)4;/h1H3,(H,2,3,4);/q;+1/p-1
- InChIKey
- JFTZUZWJGUCSTE-UHFFFAOYSA-M
- SMILES
- S(=O)(=O)(C)S[Na]
- EPA Substance Registry System
- Methanesulfonothioic acid, sodium salt (1950-85-2)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 684538
- Product name
- Sodium methanethiosulfonate
- Purity
- 95%
- Packaging
- 1g
- Price
- $91.48
- Updated
- 2025/07/31
- Product number
- S645000
- Product name
- Sodium methanethiosulfonate
- Packaging
- 500mg
- Price
- $70
- Updated
- 2021/12/16
- Product number
- S645000
- Product name
- Sodium methanethiosulfonate
- Packaging
- 2g
- Price
- $140
- Updated
- 2021/12/16
- Product number
- 13496
- Product name
- Sodium methanethiosulfonate
- Packaging
- 500mg
- Price
- $390
- Updated
- 2021/12/16
- Product number
- ING0003064
- Product name
- SODIUM METHANETHIOSULFONATE
- Purity
- 95.00%
- Packaging
- 250MG
- Price
- $500
- Updated
- 2021/12/16
sodium methanethiosulphonate Chemical Properties,Usage,Production
Chemical Properties
White Solid
Uses
Sodium Methanethiosulfonate (cas# 1950-85-2) is a compound useful in organic synthesis.
Synthesis
20277-69-4
1950-85-2
The general procedure for the synthesis of sodium sulfur methanesulfonate from sodium methanesulfite was as follows: a mixture of sodium methanesulfonate (5.43 g, 53 mmol) and sulfur powder (1.666 g, 52 mmol) in anhydrous methanol (310 mL) was heated and refluxed for 20 minutes until the sulfur was almost completely dissolved. The reaction mixture was filtered while hot and the filtrate was concentrated to dryness. The resulting off-white solid was stirred with a small amount of anhydrous ethanol at room temperature, filtered and concentrated again. The grinding process was repeated until the 1H NMR spectrum of the white residue showed no sodium methanethiosulfonate residue. All the filtrates were combined and evaporated to dryness to give sodium thiomethanesulfonate (5.40 g, 77% yield) as fine white acicular crystals; melting point 271-272°C (literature value: 272-273.5°C, G.L. Kenyon, T.W. Bruice, Methods Enzymol. 1977, 47, 407-430); 1H NMR ( 200 MHz, CDCl3) δ 3.18 (s, 3H, CH3); Calculated elemental analysis (C8H5NaO2S2): C 8.95, H 2.25; Measured values: C 8.86, H 2.55. An improved synthetic method for NaMTS has been successfully validated, which achieves a high yield synthesis of NaMTS through the reflux reaction of sodium sulfite with sulfur in methanol (Scheme 16, Figure 19), avoiding the cumbersome by-product isolation step in the conventional Na2SZMe3SiCl method. Although a small amount of unknown by-products was generated during the reaction, they were easily separated from NaMTS.
Purification Methods
Recrystallise the salt from H2O (plates as monohydrate) or MeOH. The potassium salt crystallises from H2O, EtOH or MeOH (thick plates) with m 201-202o [Foss Acta Chem Scand 10 868 1956]. The S-benzylisothiouronium salt has m 141-142o (from EtOH) [Kurzer & Powell J Chem Soc 3733 1952]. [Beilstein 4 IV 31.]
References
[1] Chemistry Letters, 1987, p. 2161 - 2162
[2] Patent: WO2006/55437, 2006, A2. Location in patent: Page/Page column 38; 39; sheet 23
[3] Journal of Organic Chemistry, 2005, vol. 70, # 24, p. 9740 - 9754
[4] Dalton Transactions, 2011, vol. 40, # 45, p. 12310 - 12319
[5] Journal of Organic Chemistry, 1988, vol. 53, # 2, p. 396 - 402
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Raw materials
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View Lastest Price from sodium methanethiosulphonate manufacturers
- Product
- sodium methanethiosulphonate 1950-85-2
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-10-17
- Product
- sodium methanethiosulphonate 1950-85-2
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 1
- Release date
- 2018-08-06