Description

Phenylchloridothiophosphonic Acid Methyl Ester is a specialized organophosphorus compound with the CAS registry number 20147-96-0. This chemical serves as a critical intermediate in the synthesis of advanced agrochemicals and pharmaceuticals, offering precise reactivity for constructing complex molecular architectures. It is primarily sought by research institutions and industrial manufacturers in the agrochemical, pharmaceutical, and fine chemical sectors for developing novel active ingredients and functional materials.

Application

• Agrochemical Intermediate: A key building block in the synthesis of novel insecticides, herbicides, and fungicides, particularly those targeting specific enzymatic pathways.
• Pharmaceutical Synthesis: Used as a versatile intermediate for constructing pharmacologically active molecules, especially in medicinal chemistry research for new drug candidates.
• Ligand and Catalyst Precursor: Employed in organometallic chemistry and catalysis research to develop new ligands and catalytic systems.
• Flame Retardant Synthon: Acts as a precursor in the production of specialized organophosphorus flame retardants and plasticizers.
• Chemical Research & Development: Utilized in academic and industrial R&D for studying reaction mechanisms and developing new synthetic methodologies.
• Fine Chemical Production: Serves as an intermediate for manufacturing other high-value, specialized chemicals and performance materials.

Basic Information

Product Name	Phenylchloridothiophosphonic Acid Methyl Ester
CAS No.	20147-96-0
Molecular Formula	C7H8ClO2PS
Molecular Weight	222.62 g/mol
Synonyms	Methyl Phenylchloridothiophosphonate; Phenylphosphonochloridothioic Acid Methyl Ester; Methyl Phenylphosphonochloridothioate; Thiophosphonic Acid, P-, Chloro-, Methyl Phenyl Ester; Methyl Chloro(phenyl)phosphonothioate; NSC 163083; Phenyl Chloro(methylthio)phosphine Oxide
EINECS	Contact for details

Quality Control

Our production of Phenylchloridothiophosphonic Acid Methyl Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure consistency and meet the exacting requirements of our industrial and research clients. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (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.