Description

9H-Xanthene-2,7-Disulfonic Acid,4,5-Bis(Diphenylphosphino)-9,9-Dimethyl-, Disodium Salt is a specialized organophosphorus ligand with integrated xanthene and sulfonate functionalities. This compound matters for its unique ability to act as a water-soluble, sterically demanding ligand, facilitating homogeneous catalysis in aqueous or biphasic systems. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, fine chemical, and advanced materials sectors for developing novel synthetic routes and catalytic processes.

Application

• As a water-soluble ligand for transition metal catalysis (e.g., palladium, rhodium) in cross-coupling and hydrogenation reactions.
• Enabling aqueous-phase organometallic chemistry for greener and more sustainable synthetic methodologies.
• Potential use in the synthesis of pharmaceutical intermediates where catalyst recovery and product purity are critical.
• As a chelating agent in the development of luminescent or electroactive materials and metal-organic frameworks (MOFs).
• Research applications in asymmetric catalysis due to its chiral, bidentate phosphine structure.
• Use in academic and industrial R&D for exploring new catalytic cycles and reaction mechanisms.

Basic Information

Product Name	9H-Xanthene-2,7-Disulfonic Acid,4,5-Bis(Diphenylphosphino)-9,9-Dimethyl-, Disodium Salt
CAS No.	215792-51-1
Molecular Formula	C39H32Na2O7P2S2
Molecular Weight	806.71 g/mol
Synonyms	4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene-2,7-disulfonic acid disodium salt; Xantphos disulfonate disodium salt; Sodium 4,5-bis(diphenylphosphanyl)-9,9-dimethyl-9H-xanthene-2,7-disulfonate; Water-Soluble Xantphos ligand; 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene-2,7-disulfonic acid disodium salt; Disodium 9,9-dimethyl-4,5-di(diphenylphosphanyl)xanthene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our 9H-Xanthene-2,7-Disulfonic Acid,4,5-Bis(Diphenylphosphino)-9,9-Dimethyl-, Disodium Salt is manufactured under strict quality protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for catalytic and synthetic applications. Certificates of Analysis (COA) with detailed specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. This material is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air, moisture, or light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 1.0%
Solubility	Soluble in water, methanol

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.