Maximum quantity allowed is 999
Please select the quantity
CAS RN: 19172-47-5 | Product Number: B1133
Lawesson's Reagent [Sulfurating Reagent]
×
![]()
×
![Lawesson's Reagent [Sulfurating Reagent]](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "Lawesson's Reagent [Sulfurating Reagent]")
Purity: >93.0%(T)
Synonyms:
- 2,4-Bis(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-Disulfide
Product Documents:
| Size | Unit Price | Same Day | 2-3 Business Days | Other Lead Time |
Shipping Information
|
|---|---|---|---|---|---|
| 25G |
NT$2,480
|
≥80 | ≥100 | Contact Us | |
| 250G |
NT$14,400
|
1 | 39 | Contact Us |
* The above prices include freight cost, customs, and other charges to the destination except for products that need to be shipped by sea or dry ice. For details, please contact
our distributor
in Taiwan to order our product.
* The storage conditions are subject to change without notice.
| Product Number | B1133 |
| Purity / Analysis Method | >93.0%(T) |
| Molecular Formula / Molecular Weight | C__1__4H__1__4O__2P__2S__4 = 404.45 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Moisture Sensitive |
| CAS RN | 19172-47-5 |
| Reaxys Registry Number | 1024888 |
| PubChem Substance ID | 87564076 |
| Merck Index (14) | 5391 |
| MDL Number | MFCD00005171 |
Specifications
| Appearance | White to Light yellow to Green powder to crystal |
| Purity(Iodometric Titration) | min. 93.0 % |
Properties (reference)
| Melting Point | 230 °C |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H302 + H332 : Harmful if swallowed or if inhaled. H315 : Causes skin irritation. H319 : Causes serious eye irritation. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P270 : Do not eat, drink or smoke when using this product. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ eye protection/ face protection. P302 + P352 : IF ON SKIN: Wash with plenty of water. P337 + P313 : If eye irritation persists: Get medical advice/ attention. P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P362 + P364 : Take off contaminated clothing and wash it before reuse. P332 + P313 : If skin irritation occurs: Get medical advice/ attention. P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth. P304 + P340 + P312 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell. |
Related Laws:
Transport Information:
| H.S.code* | 2931.49-900 |
Application
TCI Practical Example: Conversion of Carbonyl Group into Thiocarbonyl Group using Lawesson's Reagent
Used Chemicals
Procedure
To a solution of Lawesson’s reagent (2.38 g, 5.88 mmol) in dichloromethane (42 mL), 2-pyrrolidone (1.0 g, 11.75 mmol) in dichloromethane (42 mL) was added at room temperature under N2 atmosphere. After stirring the reaction solution for 2 hours, the solvent was removed under reduced pressure and the residue was purified by column chromatography (hexane:ethyl acetate = 9:1 - 6:4), giving pyrrolidine-2-thione as a white solid (0.79 g, 66%).
Experimenter’s Comments
The reaction was carried out in the fume hood due to Lawesson’s reagent’s bad smell.
The reaction mixture was monitored by TLC (hexane:ethyl acetate = 3:2, Rf = 0.28).
Analytical Data（pyrrolidine-2-thione）
1H NMR (400 MHz, CDCl3); δ 8.61 (brs, 1H), 3.61 (t, 2H, J = 8.0 Hz), 2.86 (t, 2H, J = 8.0 Hz), 2.20-2.12 (m, 2H).
13C NMR (101 MHz, CDCl3); δ 205.83, 49.66, 43.21, 22.91.
Lead Reference
- Ruthenium Catalyzed Synthesis of Enaminones
Application
Thiocarbonylation Reagent
References
- S. O. Lawesson, et al., Bull. Soc. Chim. Belg. 1978, 87, 223; 87, 229; 87, 293; 87, 299.
- R. Shabana, et al., Nouv. J. Chim. 1980, 4, 47.
PubMed Literature
Articles/Brochures
Product Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
Please select Language.
The requested SDS is not available.
Please Contact Us for more information.
Specifications
C of A & Other Certificates
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
Sample C of A
This is a sample C of A and may not represent a recently manufactured lot of the product.
A sample C of A for this product is not available at this time.
Analytical Charts
Please enter Lot Number
Incorrect Lot Number. Please input only the 4-5 alphanumeric characters before the hyphen.
The requested analytical chart is not available. Sorry for the inconvenience.