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Substance Name: Lawesson's reagent
RN: 19172-47-5
UNII: A4125MQ8RX
InChIKey: CFHGBZLNZZVTAY-UHFFFAOYSA-N

Note

  • Thiation agent.

Classification Code

  • TSCA Flag P (a Commenced PMN (Premanufacture Notice) Substance)

Molecular Formula

  • C14-H14-O2-P2-S4

Molecular Weight

  • 404.475
 
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Names and Synonyms

Name of Substance

  • 2,4-Bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide
  • Lawesson's reagent

Synonyms

  • EINECS 242-855-4
  • NSC 150550
  • UNII-A4125MQ8RX

Systematic Names

  • 1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide
  • 2,4-Bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulphide

Registry Numbers

CAS Registry Number

  • 19172-47-5

FDA UNII

  • A4125MQ8RX

Other Registry Numbers

  • 114668-60-9
  • 136390-48-2
  • 72728-81-5
  • 94367-93-8

System Generated Number

  • 0019172475

Structure Descriptors

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

S=P1(c2ccc(cc2)OC)SP(=S)(S1)c1ccc(cc1)OC

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 229 deg C   EXP
log P (octanol-water) 3.860 (none)   EST
Atmospheric OH Rate Constant 1.51E-10 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.