4 4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE-

Product Name: 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;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%;4,4μ-(Phenylphosphinidene)bis(benzenesulfonic acid) hydrate dipotassium salt
CBNumber: CB4499413
Molecular Formula: C18H18KO7PS2
Formula Weight: 480.53
MOL File: 308103-66-4.mol

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4 4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE- Property

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

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Safety

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

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 479497
Product name: 4,4′-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate
Purity: 97%
Packaging: 1g
Price: $340
Updated: 2025/07/31

Sigma-Aldrich

Product number: 479497
Product name: 4,4′-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt hydrate
Purity: 97%
Packaging: 2.5g
Price: $729
Updated: 2025/07/31

Strem Chemicals

Product number: 15-0638
Product name: Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt, 97%
Packaging: 100mg
Price: $47
Updated: 2023/06/20

Strem Chemicals

Product number: 15-0638
Product name: Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt, 97%
Packaging: 500mg
Price: $183
Updated: 2023/06/20

Sigma-Aldrich

Product number: 698539
Product name: Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassium salt
Purity: 97%
Packaging: 250mg
Price: $88
Updated: 2025/07/31

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4 4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE- Chemical Properties,Usage,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

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4 4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE- Suppliers

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View Lastest Price from 4 4'-(PHENYLPHOSPHINIDENE)BIS(BENZENE- manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: Bis(p-sulfonatophenyl)phenylphosphine dihydrate dipotassiuM salt 308103-66-4
Price: US $1.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50 tons
Release date: 2020-01-17

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4,4′-(Phenylphosphinidene)bis(benzenesulfonic acid) dipotassium salt, CAS 308103-66-4

308103-66-4

C6H5PC6H4SO3K2xH2O

C18H13K2O6PS2

Basic Phosphine LigandsCatalysis and Inorganic Chemistry

Catalysis and Inorganic Chemistry

Cross-Coupling

Phosphine Ligands

Phosphorus Compounds