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Alfa Aesar™ Lawesson's Reagent, 97%

$42.95 - $42.95

Chemical Identifiers

Chemical Name or Material Lawesson's Reagent
CAS 19172-47-5
Molecular Formula C14H14O2P2S4
Formula Weight 404.47
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

  SDS
alfa aesar™
A1453014*
25g Each for $42.95

AAA1453036

  SDS
alfa aesar™
A1453036
500g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Formula Weight 404.47
DOT Information Transport Hazard Class: 4.3; Packing Group: III; Proper Shipping Name: WATER-REACTIVE SOLID, TOXIC, N.O.S.
Melting Point 221° to 225°C
Health Hazard 1 Danger
CAS 19172-47-5
Synonym 2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane; 4-Methoxyphenylthionophosphine sulfide dimer
Quantity 25g
Assay 97%
TSCA TSCA
UN Number UN3134
Beilstein 1024888
MDL Number MFCD00005171
Molecular Formula C14H14O2P2S4
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.
Merck Index 14,5391
Chemical Name or Material Lawesson's Reagent
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.

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.