Lawesson's Reagent
![]() |
- ₹846 - ₹34530
- Product name: Lawesson's Reagent
- CAS: 19172-47-5
- MF: C14H14O2P2S4
- MW: 404.47
- EINECS:242-855-4
- MDL Number:MFCD00005171
- Synonyms:AURORA KA-1707;4-METHOXYPHENYLTHIOPHOSPHORIC CYCLIC DI(THIOANHYDRIDE);2,4-DI(4-METHOXYPHENYL)-1,3,2LAMBDA-5,4LAMBDA-5-DITHIADIPHOSPHETANE-2,4-DITHIONE;P-METHOXYPHENYLTHIONOPHOSPHINE SULFIDE DIMER;P-METHOXYPHENYLTHIOPHOSPHINE SULFIDE, DIMER;2,4-bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulphide;2,4-Bis(methoxyphenyl)-1,3-dithia-2,4-diphosphetane-2,4-disulfide;Lawesson's Reagent [Sulfurating Reagent]
11 prices
Selected condition:
Brand
- TCI Chemicals (India)
- Sigma-Aldrich(India)
- ALFA India
- ottokemi
Package
- 5g
- 10G
- 25G
- 25gm
- 100gm
- 100G
- 250G
- 500g
- ManufacturerTCI Chemicals (India)
- Product numberB1133
- Product descriptionLawesson's Reagent [Sulfurating Reagent]
- Packaging25G
- Price₹2900
- Updated2022-05-26
- Buy
- ManufacturerTCI Chemicals (India)
- Product numberB1133
- Product descriptionLawesson's Reagent [Sulfurating Reagent]
- Packaging250G
- Price₹17400
- Updated2022-05-26
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number227439
- Product descriptionLawesson reagent 97%
- Packaging25G
- Price₹1872.73
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number227439
- Product descriptionLawesson reagent 97%
- Packaging10G
- Price₹2045.93
- Updated2022-06-14
- Buy
- ManufacturerSigma-Aldrich(India)
- Product number227439
- Product descriptionLawesson reagent 97%
- Packaging100G
- Price₹8237.83
- Updated2022-06-14
- Buy
- ManufacturerALFA India
- Product numberALF-A14530-36
- Product descriptionThermo Scientific™ Lawesson's Reagent, 97%
- Packaging500g
- Price₹34530
- Updated2022-05-26
- Buy
- ManufacturerALFA India
- Product numberALF-A14530-22
- Product descriptionThermo Scientific™ Lawesson's Reagent, 97%
- Packaging100g
- Price₹15469
- Updated2022-05-26
- Buy
- ManufacturerALFA India
- Product numberALF-A14530-14
- Product descriptionThermo Scientific™ Lawesson's Reagent, 97%
- Packaging25g
- Price₹5091
- Updated2022-05-26
- Buy
- ManufacturerALFA India
- Product numberALF-A14530-06
- Product descriptionThermo Scientific™ Lawesson's Reagent, 97%
- Packaging5g
- Price₹1120
- Updated2022-05-26
- Buy
- Manufacturerottokemi
- Product number L 1288
- Product descriptionLawesson's reagent
- Packaging25gm
- Price₹846
- Updated2022-05-26
- Buy
- Manufacturerottokemi
- Product number L 1288
- Product descriptionLawesson's reagent
- Packaging100gm
- Price₹3249
- Updated2022-05-26
- Buy
Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|
TCI Chemicals (India) | B1133 | Lawesson's Reagent [Sulfurating Reagent] | 25G | ₹2900 | 2022-05-26 | Buy |
TCI Chemicals (India) | B1133 | Lawesson's Reagent [Sulfurating Reagent] | 250G | ₹17400 | 2022-05-26 | Buy |
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 25G | ₹1872.73 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 10G | ₹2045.93 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 100G | ₹8237.83 | 2022-06-14 | Buy |
ALFA India | ALF-A14530-36 | Thermo Scientific™ Lawesson's Reagent, 97% | 500g | ₹34530 | 2022-05-26 | Buy |
ALFA India | ALF-A14530-22 | Thermo Scientific™ Lawesson's Reagent, 97% | 100g | ₹15469 | 2022-05-26 | Buy |
ALFA India | ALF-A14530-14 | Thermo Scientific™ Lawesson's Reagent, 97% | 25g | ₹5091 | 2022-05-26 | Buy |
ALFA India | ALF-A14530-06 | Thermo Scientific™ Lawesson's Reagent, 97% | 5g | ₹1120 | 2022-05-26 | Buy |
ottokemi | L 1288 | Lawesson's reagent | 25gm | ₹846 | 2022-05-26 | Buy |
ottokemi | L 1288 | Lawesson's reagent | 100gm | ₹3249 | 2022-05-26 | Buy |
Properties
Melting point :228-230 °C(lit.)
Boiling point :525.8±60.0 °C(Predicted)
Density :1.48±0.1 g/cm3(Predicted)
storage temp. :Inert atmosphere,2-8°C
solubility :Chloroform (Slightly)
form :Powder
color :White to almost white
Water Solubility :Decomposition
Sensitive :Moisture Sensitive
Merck :14,5391
BRN :1024888
InChI :InChI=1S/C14H14O2P2S4/c1-15-11-3-7-13(8-4-11)17(19)21-18(20,22-17)14-9-5-12(16-2)6-10-14/h3-10H,1-2H3
InChIKey :CFHGBZLNZZVTAY-UHFFFAOYSA-N
SMILES :S1P(=S)(C2=CC=C(OC)C=C2)SP1(=S)C1=CC=C(OC)C=C1
CAS DataBase Reference :19172-47-5(CAS DataBase Reference)
EPA Substance Registry System :1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide (19172-47-5)
Boiling point :525.8±60.0 °C(Predicted)
Density :1.48±0.1 g/cm3(Predicted)
storage temp. :Inert atmosphere,2-8°C
solubility :Chloroform (Slightly)
form :Powder
color :White to almost white
Water Solubility :Decomposition
Sensitive :Moisture Sensitive
Merck :14,5391
BRN :1024888
InChI :InChI=1S/C14H14O2P2S4/c1-15-11-3-7-13(8-4-11)17(19)21-18(20,22-17)14-9-5-12(16-2)6-10-14/h3-10H,1-2H3
InChIKey :CFHGBZLNZZVTAY-UHFFFAOYSA-N
SMILES :S1P(=S)(C2=CC=C(OC)C=C2)SP1(=S)C1=CC=C(OC)C=C1
CAS DataBase Reference :19172-47-5(CAS DataBase Reference)
EPA Substance Registry System :1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide (19172-47-5)
Safety Information
Symbol(GHS): |
![]() |
||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Signal word: | Danger | ||||||||||||||
Hazard statements: |
|
||||||||||||||
Precautionary statements: |
|
Description
Lawesson's reagent, also known as Lloyd's reagent, is a commonly used chemical reagent in the preparation of organic sulfur compounds. At room temperature under normal pressure, it appears as the solid yellow powder with a strong smell of rotten. In 1956, it was first successfully produced by the reaction between arene and tetraphosphorus decasulfide. The Swedish chemist Sven-Olov Lawesson has carefully studied its reaction with organic compounds, so that its application has been greatly promoted, so the name also derived. The molecule of the Lawesson's reagent contains the four-membered ring structure alternately composed of sulfur and phosphorus.Upon being heated, it undergoes depolymerization, generating two molecules of unstable ylide (R-PS2), which are the major reactive intermediates. Upon application of the Lawesson’s reagents with two different substitution groups for reaction, it has been observed of molecules with substituent group exchanged with each other in the 31 NMR spectrum of the product, confirming the existence of the intermediates, R-PS2.
Lawesson's reagent is an oxygen-sulfur exchange reagent with the most common application being for the preparation of thioamides and converting carbonyl compounds into sulfur carbonyl compounds. The reacted substrates can include ketone, ester, lactone, amide, lactam, and quinone. The electron-rich carbonyl groups are easier to react. Upon reaction with α, β-unsaturated aldehydes and ketones, the double bond is not affected.
Related product price
- LITHIUM PERIODATE
₹6390-52119 - Burgess reagent
₹3690-40500 - Dimethyl disulfide
₹2412-62249.99