Description

Phosphine Oxide, (9,9-Dimethyl-9H-Xanthene-4,5-Diyl)Bis[Diphenyl- is a specialized organophosphorus compound featuring a xanthene core, which is significant for its role as a key intermediate and ligand in advanced chemical synthesis. Its molecular architecture makes it valuable for applications requiring precise electronic and steric properties, such as in the development of novel materials and catalysts. This high-purity chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science sectors seeking to innovate with phosphine-based chemistry. CAS number 808142-24-7.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Catalyst Ligand Precursor: Used in the preparation of specialized phosphine ligands for transition metal catalysis, including cross-coupling and hydrogenation reactions.
• Agrochemical Research: Acts as an intermediate in the development of novel pesticides and herbicides with enhanced efficacy.
• Organic Light-Emitting Diodes (OLEDs): Employed in the synthesis of electron-transport or host materials for advanced display and lighting technologies.
• Polymer & Material Science: Utilized as a monomer or additive to impart specific thermal or electronic properties to high-performance polymers.
• Academic & Industrial R&D: A valuable reagent for exploratory chemistry in universities and corporate research laboratories focusing on organophosphorus chemistry.

Basic Information

Item	Details
Product Name	Phosphine Oxide, (9,9-Dimethyl-9H-Xanthene-4,5-Diyl)Bis[Diphenyl-
CAS No.	808142-24-7
Molecular Formula	C43H31O3P
Molecular Weight	626.68 g/mol
Synonyms	(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine oxide); 4,5-Bis(diphenylphosphoryl)-9,9-dimethylxanthene; Xantphos dioxide; DPEphos dioxide; 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene P,P'-dioxide; Bis(diphenylphosphino)xanthene dioxide; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of Phosphine Oxide, (9,9-Dimethyl-9H-Xanthene-4,5-Diyl)Bis[Diphenyl- adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Products undergo rigorous analytical testing, including HPLC, NMR, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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