Description

Methylphenylphosphinic Chloride CAS NO 5761-97-7 is a versatile organophosphorus reagent characterized by its reactive P-Cl bond and aromatic phenyl group. This compound is a critical building block in synthetic organic chemistry, enabling the efficient introduction of the methylphenylphosphinyl moiety into target molecules. It is primarily sought after by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications ranging from catalyst and ligand synthesis to the development of novel active ingredients.

Application

• Pharmaceutical Intermediates: A key synthon for the preparation of phosphinate esters and amides used in drug discovery and development.
• Agrochemical Synthesis: Employed in the manufacture of herbicides, insecticides, and plant growth regulators containing phosphorus.
• Ligand and Catalyst Precursor: Used to synthesize chiral and achiral phosphine ligands for homogeneous catalysis.
• Flame Retardant Additives: Serves as a starting material for phosphorus-based flame retardants used in polymers and textiles.
• Material Science: Utilized in the surface modification of materials and the synthesis of functional polymers.
• Organic Synthesis Reagent: Acts as a phosphorylating agent in various organic transformations, including the synthesis of phosphonates.

Basic Information

Product Name	Methylphenylphosphinic Chloride
CAS No.	5761-97-7
Molecular Formula	C7H8ClOP
Molecular Weight	174.56 g/mol
Synonyms	Methyl(phenyl)phosphinic chloride; Phenylmethylphosphinic chloride; Methylphenylphosphinyl chloride; Methylphenylphosphonous dichloride (related); α-Methylbenzenephosphonochloridous acid chloride; Benzenephosphonochloridous acid, methyl-; Methyl Phenylphosphinite Chloride
EINECS	227-274-5

Quality Control

Our production of Methylphenylphosphinic Chloride adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatographic purity assessment and identity confirmation, to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic and reactive nature, the container should be kept under an inert atmosphere (e.g., nitrogen or argon) and protected from moisture. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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