Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
227439
Lawesson reagent
97%
Synonym(s):
2,4-Bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiadiphosphetane, 2,4-Bis-(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide, 4-Methoxyphenylthiophosphoric cyclic di(thioanhydride), LR
About This Item
Recommended Products
Quality Level
Assay
97%
form
powder
mp
228-230 °C (lit.)
SMILES string
COc1ccc(cc1)P2(=S)SP(=S)(S2)c3ccc(OC)cc3
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
InChI key
CFHGBZLNZZVTAY-UHFFFAOYSA-N
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General description
Application
- Oxthiaphosphinine-3-sulfide derivatives by the reaction with Mannich bases of β-naphthol and 8-hydroxyquinoline.[3]
- 1,3,5,2-Trithiaphosphinane-2-sulfide derivatives by reacting with benzaldehyde in the presence of trialkyl phosphite.[3]
- 2,4,6-Triphenyl-1,3,5-trithiane from benzaldehyde and ethyl acrylate.[3]
- 9-Benzanthronethione by thionation of 9-benzanthone oxime.[2]
- 1,2,4-Trithiolane from 2,2,4,4-tetramethyl-3-thioxocyclobutanone S-oxide.[4]
- Sulfur derivatives of triterpenic oxo compounds.[5]
- Tropothione in situ at room temperature and to trap it with dieneophiles.[6]
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Water-react 2
Supplementary Hazards
Storage Class Code
4.3 - Hazardous materials which set free flammable gases upon contact with water
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdfHelpful?
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