Description

Chloridothiophosphoric Acid o-(2,4-Dichlorophenyl)o-Methyl Ester is a specialized organothiophosphate compound with the CAS registry number 946-04-3. This chemical serves as a critical intermediate in the synthesis of advanced agrochemicals and pharmaceuticals, where its unique molecular structure enables precise chemical transformations. It is primarily sought by research and development chemists, process engineers, and manufacturers in the agrochemical and fine chemical industries for creating novel active ingredients and complex molecules.

Application

• Key Intermediate in Agrochemical Synthesis: Primarily used in the production of insecticides, herbicides, and fungicides, leveraging its thiophosphoryl chloride moiety.
• Pharmaceutical Intermediate: Employed in the research and development of active pharmaceutical ingredients (APIs) requiring specific chlorophenyl and thiophosphate functionalities.
• Chemical Research & Development: Serves as a versatile building block in organic synthesis for creating novel compounds in academic and industrial labs.
• Fine Chemical Manufacturing: Used in the scaled-up production of specialty chemicals where high-purity intermediates are required.

Basic Information

Product Name	Chloridothiophosphoric Acid o-(2,4-Dichlorophenyl)o-Methyl Ester
CAS No.	946-04-3
Molecular Formula	C7H6Cl3O2PS
Molecular Weight	291.51 g/mol
Synonyms	O-(2,4-Dichlorophenyl) O-Methyl Chlorothiophosphate; Methyl 2,4-Dichlorophenyl Chlorothiophosphate; Chlorothiophosphoric Acid O-Methyl O-(2,4-Dichlorophenyl) Ester; S-2,4-Dichlorophenyl O-Methyl Chlorothiophosphate (common isomer designation); Thiophosphoryl Chloride O-Methyl O-(2,4-Dichlorophenyl) Ester; CAS 946-04-3; 2,4-Dichlorophenyl Methyl Chlorothiophosphate
EINECS	213-405-9

Quality Control

Our production of Chloridothiophosphoric Acid o-(2,4-Dichlorophenyl)o-Methyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for your synthetic processes. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and organic solvents. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Water Content (KF)	≤ 0.5%

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