Back to Search
Lawesson'S Reagent
CAS: 19172-47-5 | C14H14O2P2S4
2D Structure
3D Structure
Loading 3D structure...
Basic Information
CAS Registry Number:
19172-47-5
Molecular Formula:
C14H14O2P2S4
Molecular Mass:
404.48 g/mol
Names and Synonyms:
Lawesson'S Reagent
1,3,2,4-Dithiadiphosphetane, 2,4-bis(4-methoxyphenyl)-, 2,4-disulfide
Phosphonotrithioic acid, (p-methoxyphenyl)-, bimol. cyclic anhydrosulfide
p-Anisyldithiophosphonic anhydride
2,4-Bis(p-methoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide
Lawesson's reagent
2,4-Bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide
Reagents, Lawesson's
2,4-Di(p-methoxyphenyl)-1,3-dithiadiphosphetane disulfide
NSC 150550
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
Lawesson reagent
2,4-(4-Methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide
Identifiers:
SMILES:
COc1ccc(P2(=S)SP(=S)(c3ccc(OC)cc3)S2)cc1
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
Key Properties
Melting Point
229 °C
CAS Common Chemistry
Spectral Data
NMR, IR, and Mass spectral data
1H NMR
13C NMR
Predicting NMR spectra...
10 ppm
9
8
7
6
5
4
3
2
1
0 ppm
| Shift (ppm) | Multiplicity | Integration | Assignment |
|---|
200 ppm
180
160
140
120
100
80
60
40
20
0 ppm
| Shift (ppm) | DEPT | Assignment |
|---|
Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.
All Properties
Comprehensive physical and chemical properties
| Property | Value | Source |
|---|---|---|
| Molecular Mass | 404.48 g/mol | CAS Common Chemistry |
| 404.4800000000001 g/mol | RDKit | |
| 403.93518694799997 g/mol | RDKit | |
| Wikipedia Url | https://en.wikipedia.org/wiki/Lawesson%27s_reagent | CAS Common Chemistry |
| Canonical SMILES | S=P1(SP(=S)(S1)C2=CC=C(OC)C=C2)C3=CC=C(OC)C=C3 | CAS Common Chemistry |
| 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 | CAS Common Chemistry |
| InChI Key | InChIKey=CFHGBZLNZZVTAY-UHFFFAOYSA-N | CAS Common Chemistry |
| Melting Point | 229 °C | CAS Common Chemistry |
| Name | Lawesson's reagent | CAS Common Chemistry |
| Heavy Atom Count | 22 | RDKit |
| Hydrogen Bond Acceptors | 6 | RDKit |
| Hydrogen Bond Donors | 0 | RDKit |
| Rotatable Bonds | 4 | RDKit |
| Aromatic Ring Count | 2 | RDKit |
| Topological Polar Surface Area | 18.46 Ų | RDKit |
| LogP | 4.753600000000002 | RDKit |
| Molar Refractivity | 109.00800000000001 | RDKit |
