Lawesson's Reagent, 99%, Thermo Scientific Chemicals

Product Code	Brand	Quantity	Packaging
10582611	Thermo Scientific Acros 210890250	25 g	Glass bottle
10124840	Thermo Scientific Acros 210891000	100 g	Glass bottle
11328901	Thermo Scientific Acros 210895000	500 g	Glass Bottle

Description

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

For C-S bond formation

Chemical Identifiers

• CAS: 19172-47-5
• Molecular Weight (g/mol): 404.452
• Synonym: 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
• IUPAC Name: 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2$l^{5},4$l^{5}-dithiadiphosphetane

• Molecular Formula: C14H14O2P2S4
• InChI Key: CFHGBZLNZZVTAY-UHFFFAOYSA-N
• PubChem CID: 87949
• SMILES: COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC

Specifications

• Color: White
• Melting Point: 228.0°C to 231.0°C
• Molecular Formula: C14H14O2P2S4
• Synonym: 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
• InChI Key: CFHGBZLNZZVTAY-UHFFFAOYSA-N
• IUPAC Name: 2,4-bis(4-methoxyphenyl)-2,4-bis(sulfanylidene)-1,3,2$l^{5},4$l^{5}-dithiadiphosphetane
• PubChem CID: 87949
• Percent Purity: 99%
• Chemical Name or Material: Lawesson's Reagent

• CAS: 19172-47-5
• Assay Percent Range: 99%
• Fieser: 10,39; 12,59; 13,38; 15,37; 16,37
• Solubility Information: Solubility in water: decomposes.
• SMILES: COC1=CC=C(C=C1)P2(=S)SP(=S)(S2)C3=CC=C(C=C3)OC
• Molecular Weight (g/mol): 404.452
• Formula Weight: 404.45
• Physical Form: Powder

Safety and Handling

Product Identifier

• Lawesson''s Reagent

Signal Word

• Danger

Hazard Category

• Substance which\, in contact with water\, emits flammable gases Category 2

Hazard Statement

• H261-In contact with water releases flammable gases.
• EUH029-Contact with water liberates toxic gas.

Precautionary Statement

• P280-Wear protective gloves/protective clothing/eye protection/face protection.
• P231+P232-Handle under inert gas. Protect from moisture.
• P335+P334-Brush off loose particles from skin Immerse in cool water/wrap in wet bandages.
• P314-Get medical advice/attention if you feel unwell.

RUO – Research Use Only