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Sodium thiomethoxide

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Sodium thiomethoxide Basic information

Product Name:
Sodium thiomethoxide
Synonyms:
  • Sodium thiomethoxide solution
  • METHANETHIOL SODIUM SALT
  • METHYL MERCAPTAN SODIUM SALT
  • SODIUM METHANETHIOLATE
  • SODIUM METHYL MERCAPTIDE
  • SODIUM METHYL SULFIDE
  • SODIUM THIOMETHOXIDE
  • Sodium thiomethoxyde
CAS:
5188-07-8
MF:
CH5NaS
MW:
72.1
EINECS:
225-969-9
Product Categories:
  • Classes of Metal Compounds
  • Na (Sodium) Compounds (excluding simple sodium salts)
  • Typical Metal Compounds
  • Aliphatics
  • Sulfur & Selenium Compounds
  • API
Mol File:
5188-07-8.mol
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Sodium thiomethoxide Chemical Properties

Flash point:
27°C
storage temp. 
Flammables area
form 
Powder
color 
White to off-white
Water Solubility 
soluble
Merck 
14,5956
BRN 
3592983
InChIKey
RMBAVIFYHOYIFM-UHFFFAOYSA-M
CAS DataBase Reference
5188-07-8(CAS DataBase Reference)
EPA Substance Registry System
Methanethiol, sodium salt (5188-07-8)
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Safety Information

Hazard Codes 
C,F
Risk Statements 
31-34-20/21/22-11-35-25-10
Safety Statements 
26-36/37/39-45-16
RIDADR 
UN 3263 8/PG 3
WGK Germany 
3
1-34-10-13
HazardClass 
4.3
PackingGroup 
II
HS Code 
29309090

MSDS

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Sodium thiomethoxide Usage And Synthesis

Chemical Properties

Very faint yellowish red clear liquid

Uses

Sodium thiomethoxide is a strong nucleophile used for the synthesis of methyl aryl sulfides from halo-arenes. Alkanethiolates are efficient reagents for SN2 dealkylation of esters and aryl ethers.

Uses

Used to prepare a C-21 thioether of methyl 16-prednisolonecarboxylate by mesylate displacement.

Purification Methods

Dissolve the salt (10g) in EtOH (10mL) and add Et2O (100mL). Cool and collect the precipitate, wash it with Et2O and dry it in a vacuum. It is a white powder which is very soluble in EtOH and H2O. [Billmann & Jensen Bull Soc Chim Fr 3 2318 1936, Beilstein 1 III 1212.]

Sodium thiomethoxideSupplier

Nanjing Xiezun Chemical Co., Ltd. Gold
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