Lawesson's Reagent
![Lawesson's Reagent Structure](CAS/GIF/19172-47-5.gif)
- CAS No.
- 19172-47-5
- Chemical Name:
- Lawesson's Reagent
- Synonyms
- LAWESSON REAGENT;LR;242-855-4;Lawesson's;Lawesson`s reagentsulfide dimer;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;AURORA KA-1707;awesson's Reag
- CBNumber:
- CB8128537
- Molecular Formula:
- C14H14O2P2S4
- Molecular Weight:
- 404.47
- MOL File:
- 19172-47-5.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/7 10:42:15
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) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS02 |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Signal word | Danger | |||||||||
Hazard statements | H261 | |||||||||
Precautionary statements | P231+P232-P422 | |||||||||
Hazard Codes | Xn-F,Xi,Xn,F | |||||||||
Risk Statements | 20/21/22-15/29-37 | |||||||||
Safety Statements | 8-43-36/37-22-38-7/8 | |||||||||
RIDADR | 3278 | |||||||||
WGK Germany | 3 | |||||||||
F | 13-21 | |||||||||
TSCA | Yes | |||||||||
HazardClass | 4.3 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29349990 | |||||||||
NFPA 704 |
|
Lawesson's Reagent price More Price(11)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 19172-47-5 | 25G | ₹1872.73 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 19172-47-5 | 10G | ₹2045.93 | 2022-06-14 | Buy |
Sigma-Aldrich(India) | 227439 | Lawesson reagent 97% | 19172-47-5 | 100G | ₹8237.83 | 2022-06-14 | Buy |
ALFA India | ALF-A14530-36 | Thermo Scientific™ Lawesson's Reagent, 97% | 19172-47-5 | 500g | ₹34530 | 2022-05-26 | Buy |
ALFA India | ALF-A14530-22 | Thermo Scientific™ Lawesson's Reagent, 97% | 19172-47-5 | 100g | ₹15469 | 2022-05-26 | Buy |
Lawesson's Reagent Chemical Properties,Uses,Production
Chemical Properties
light yellow to beige powder
Uses
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.
General Description
Lawesson′s reagent is generally used as a thiation agent in organic synthesis for the conversion of oxygen functionalities into their thio analogs. It facilitates the conversion of the carbonyl group to thiocarbonyl group as well as carbon-oxygen single bond into a carbon-sulfur single bond.
Solubility in organics
Lawesson's reagent is modestly sol boiling organic solvents such as toluene, chlorobenzene, anisole, dimethoxyethane.
storage
Lawesson's reagent can be stored for months at rt if moisture is excluded. Prolonged heating in solution causes decomposition (polymerization). It is toxic and should be handled under a fume hood since hazardous H2S is easily liberated with moisture.
Lawesson's Reagent Preparation Products And Raw materials
Raw materials
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
GLR Innovations | +91 9891111994 | New Delhi, India | 4542 | 58 | Inquiry |
NSR Laboratories Pvt. Ltd. | +91-9866989891 +91-9000457345 | Hyderabad, India | 196 | 58 | Inquiry |
J S LABS | +91-7330612784 +91-7330612784 | Tamil Nadu, India | 160 | 58 | Inquiry |
AMINO ORGANICS | +919866989891 | Hyderabad, India | 275 | 58 | Inquiry |
JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
Tosco Pharmachem Pvt Ltd | +91-9573336677 +91-9573336677 | Telangana, India | 49 | 58 | Inquiry |
Lakshmi Farmachem | +91-9948795885 +91-9550886476 | Telangana, India | 407 | 58 | Inquiry |
CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
Supplier | Advantage |
---|---|
GLR Innovations | 58 |
NSR Laboratories Pvt. Ltd. | 58 |
J S LABS | 58 |
AMINO ORGANICS | 58 |
JSK Chemicals | 58 |
Tosco Pharmachem Pvt Ltd | 58 |
Lakshmi Farmachem | 58 |
CLEARSYNTH LABS LTD. | 58 |
CHEMSWORTH | 30 |
A.J Chemicals | 58 |
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- Nov 25,2019
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