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Alfa Aesar™ Lawesson's Reagent, 97%

$43.62 - $43.62

Chemical Identifiers

Chemical Name or Material Lawesson's Reagent
CAS 19172-47-5
Molecular Formula C14H14O2P2S4
Formula Weight 404.47g/mol
MDL Number MFCD00005171
UN Number UN3134
Beilstein 1024888
Merck Index 14,5391
Synonym 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane; 4-Methoxyphenylthionophosphine sulfide dimer
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1453014

 
alfa aesar™
A14530-14
25g Each for $43.62

AAA1453036

 
alfa aesar™
A14530-36
500g CALL N/A N/A
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Description & Specifications

Specifications

Melting Point 221° to 225°C
Quantity 25g
Chemical Name or Material Lawesson's Reagent
CAS 19172-47-5
Assay 97%
Molecular Formula C14H14O2P2S4
Formula Weight 404.47g/mol
MDL Number MFCD00005171
UN Number UN3134
Beilstein 1024888
Merck Index 14,5391
Synonym 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane; 4-Methoxyphenylthionophosphine sulfide dimer
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H331-H261-H302-H315-H319-H335
Toxic if inhaled.
In contact with water releases flammable gas.
Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P231+P232-P261-P280-P305+P351+P338-P405-P501a
Handle under inert gas.
Protect from moisture.
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 4.3; Packing Group: III; Proper Shipping Name: WATER-REACTIVE SOLID, TOXIC, N.O.S.
TSCA TSCA

Applications
Lawesson′s reagent is a thiation agent used to convert carbonyl compounds into thiocarbonyls. It is also used to thionate enones, esters, lactones, amides, lactams and quinones. Further, it is used to prepare thiols from alcohols. It is associated with silver perchlorate and utilized as and oxophilic Lewis acid catalyst for Diels-Alder reaction of dienes with alfa, beta-unsaturated aldehydes.

Solubility
Insoluble in water.

Notes
Incompatible with strong oxidizing agents.

Safety and Handling

Danger

GHS P Statement
P231+P232-P261-P280-P305+P351+P338-P405-P501a
Handle under inert gas.
Protect from moisture.
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H331-H261-H302-H315-H319-H335
Toxic if inhaled.
In contact with water releases flammable gas.
Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.