ChemicalBook >> CAS DataBase List >>4 4'-(Phenylphosphinidene)bis(benzene-
4 4'-(Phenylphosphinidene)bis(benzene-
- CAS No.
- 308103-66-4
- Chemical Name:
- 4 4'-(Phenylphosphinidene)bis(benzene-
- Synonyms
- 4 4'-(Phenylphosphinidene)bis(benzene-;bis(p-sulfonatophenyl)phenylphosphine dipotassium salt;Dipotassium bis(p-sulfonatophenyl)phenylphosphine dihydrate;Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium;Bis(P-sulfonatophenyl)phenylphosphine hydrate dipotassium salt;Potassium 4,4'-(phenylphosphinediyl)dibenzenesulfonate dihydrate;Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassiuM salt 97%;Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt;4,4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE-SU LFONIC ACID), 2K SALT XH2O, 97%;4,4'-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate 97%
- CBNumber:
- CB4499413
- Molecular Formula:
- C18H18KO7PS2
- Molecular Weight:
- 480.53
- MDL Number:
- MFCD01321353
- MOL File:
- 308103-66-4.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-09-12 18:52:51
| Melting point | 370 °C (dec.)(lit.) |
|---|---|
| solubility | Methanol (Slightly), Water (Slightly) |
| form | Powder |
| color | white |
| Sensitive | air sensitive |
| Stability | Hygroscopic |
| InChI | 1S/C18H15O6PS2.2K.H2O/c19-26(20,21)17-10-6-15(7-11-17)25(14-4-2-1-3-5-14)16-8-12-18(13-9-16)27(22,23)24;;;/h1-13H,(H,19,20,21)(H,22,23,24);;;1H2/q;2*+1;/p-2 |
| InChIKey | PRAGZPSLQQRHKD-UHFFFAOYSA-L |
| SMILES | O.[K+].[K+].[O-]S(=O)(=O)c1ccc(cc1)P(c2ccccc2)c3ccc(cc3)S([O-])(=O)=O |
| UNSPSC Code | 12352002 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| target organs | Respiratory system |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-36/37 |
| WGK Germany | 3 |
| TSCA | No |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
4 4'-(Phenylphosphinidene)bis(benzene- price More Price(23)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 479497 | 4,4′-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate 97% | 308103-66-4 | 1g | $362 | 2026-04-30 | Buy |
| Sigma-Aldrich | 479497 | 4,4′-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate 97% | 308103-66-4 | 2.5g | $776 | 2026-04-30 | Buy |
| Strem Chemicals | 15-0463 | Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt, min. 97% min.97% | 308103-66-4 | 500mg | $132 | 2026-04-30 | Buy |
| Strem Chemicals | 15-0463 | Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt, min. 97% min.97% | 308103-66-4 | 2g | $391 | 2026-04-30 | Buy |
| Strem Chemicals | 15-0463 | Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt, min. 97% min.97% | 308103-66-4 | 10g | $1554 | 2026-04-30 | Buy |
4 4'-(Phenylphosphinidene)bis(benzene- Chemical Properties, Uses, Production
Uses
Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt (BSPP) is a water-soluble triarylphosphine salt that forms coordination complexes with silver ions, which is extensively used in the synthesis of silver nanoparticles (AgNPs).
reaction suitability
reagent type: ligand
reaction type: Suzuki-Miyaura Coupling
4 4'-(Phenylphosphinidene)bis(benzene- Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 39)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. | 025-66113011 13913916777 | cfzhang@aikonchem.com | China | 19902 | 55 |
| Sigma-Aldrich | 021-61415566 800-8193336 | orderCN@merckgroup.com | China | 51389 | 80 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400-6387771-6039 18920764717 | sales@heowns.com | China | 24650 | 60 |
| Henan Alfachem Co.,Ltd. | 0371-55051623 18137891487 | 3983243027@qq.com | China | 9974 | 58 |
| Shanghai Anyinuo Biomedical Technology Co., Ltd. | 021-34625901 | 420970979@qq.com | China | 5982 | 58 |
| Alfa Chemistry | +1-5166625404; | Info@alfa-chemistry.com | United States | 20000 | 58 |
| Zhengzhou Alfa Chemical Co.,Ltd | +86-18530059196 | sale04@alfachem.cn | China | 9745 | 58 |
View Latest Price from 4 4'-(Phenylphosphinidene)bis(benzene- manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-07 | Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassiuM salt
308103-66-4
|
$1.00 | 1KG | 99% | 50 tons | Shaanxi Dideu Medichem Co. Ltd |
-
- Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassiuM salt
308103-66-4
- $1.00
- 99%
- Shaanxi Dideu Medichem Co. Ltd
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4 4'-(Phenylphosphinidene)bis(benzene-
308103-66-4
C6H5PC6H4SO3K2xH2O
C18H13K2O6PS2
Basic Phosphine LigandsCatalysis and Inorganic Chemistry
Catalysis and Inorganic Chemistry
Cross-Coupling
Phosphine Ligands
Phosphorus Compounds
