Description

Chlorobis(4-Chlorophenyl)Phosphine, 98+% is a high-purity organophosphorus compound characterized by its two 4-chlorophenyl groups bonded to a central phosphorus atom, which is also bonded to a chlorine atom. This compound serves as a versatile and critical ligand precursor and building block in advanced chemical synthesis, particularly for creating complex phosphorus-containing architectures. It is primarily required by pharmaceutical, agrochemical, and specialty chemical R&D and manufacturing sectors for applications in catalysis and the development of novel active ingredients.

Application

• Ligand Synthesis: A key intermediate for the preparation of bidentate and monodentate phosphine ligands used in transition metal catalysis (e.g., cross-coupling reactions like Suzuki and Heck).
• Pharmaceutical Intermediates: Serves as a crucial building block in the synthesis of complex molecules with potential biological activity.
• Agrochemical Development: Used in the research and production of advanced pesticides and herbicides where phosphorus-based chemistry is essential.
• Material Science: Employed in the synthesis of novel polymers, flame retardants, and other functional materials.
• Catalyst Research: Directly utilized or modified to create custom catalysts for asymmetric synthesis and other specialized organic transformations.
• Chemical Synthesis: Acts as a phosphorylating or chlorinating agent in specific organic synthesis pathways.

Basic Information

Product Name	Chlorobis(4-Chlorophenyl)Phosphine, 98+%
CAS No.	13685-26-2
Molecular Formula	C12H8Cl3P
Molecular Weight	289.52 g/mol
Synonyms	Bis(4-chlorophenyl)chlorophosphine; (4-Chlorophenyl)phosphonous dichloride (common misnomer); Chlorobis(p-chlorophenyl)phosphine; Phosphinous chloride, bis(4-chlorophenyl)-; P,P-Bis(4-chlorophenyl)phosphinous chloride; 4,4'-Dichlorotriphenylphosphine dichloride (related); p-Chlorophenylphosphonous dichloride (related); CAS 13685-26-2
EINECS	Contact for details

Quality Control

Our Chlorobis(4-Chlorophenyl)Phosphine is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Every lot undergoes rigorous quality testing including assay (HPLC/GC), identity confirmation (IR, NMR), and impurity profiling to meet the specified 98+% purity grade. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to ensure full traceability and compliance with your quality protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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