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  6. Thermo Scientific Chemicals Lawesson's Reagent, 97%

Thermo Scientific Chemicals Lawesson's Reagent, 97%

Catalog Number aaa1453006
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Quantity:
5 g
25 g
100 g
500 g
19172-47-5
C14H14O2P2S4
404.452
MFCD00005171
CFHGBZLNZZVTAY-UHFFFAOYSA-N
lawesson's reagent, lawesson reagent, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane 2,4-disulfide, unii-a4125mq8rx, 1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-, 2,4-disulfide, 2,4-bis 4-methoxyphenyl-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane-2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulphide, 4-methoxyphenylthiophosphoric cyclic di thioanhydride
87949
2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2$l^{5},4$l^{5}-dithiadiphosphetane
COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC
19172-47-5
C14H14O2P2S4
404.452
MFCD00005171
CFHGBZLNZZVTAY-UHFFFAOYSA-N
lawesson's reagent, lawesson reagent, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane 2,4-disulfide, unii-a4125mq8rx, 1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-, 2,4-disulfide, 2,4-bis 4-methoxyphenyl-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 2,4-bis 4-methoxyphenyl-1,3,2,4-dithiadiphosphetane-2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulfide, 2,4-bis 4-methoxyphenyl-1,3-dithia-2,4-diphosphetane 2,4-disulphide, 4-methoxyphenylthiophosphoric cyclic di thioanhydride
87949
2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2$l^{5},4$l^{5}-dithiadiphosphetane
COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC

Description

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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.
TRUSTED_SUSTAINABILITY
Melting Point 221°C to 225°C
Quantity 5 g
UN Number UN3134
Beilstein 1024888
Sensitivity Moisture sensitive
Merck Index 14,5391
Solubility Information Insoluble in water.
Formula Weight 404.47
Percent Purity 97%
Chemical Name or Material Lawesson's Reagent

Safety and Handling

Hazard Category H261
Hazard Statement 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.
Precautionary Statement P223-P231+P232-P280-P335+P334-P370+P378q-P501c
DOTInformation Hazard Class: 4.3; Packaging Group: II
EINECSNumber 242-855-4
TSCA Yes
Recommended Storage Ambient temperatures
SDS

RUO – Research Use Only

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