Description

Phosphorochloridothioic Acid, o-Ethyl o-(3,5,6-Trichloro-2-Pyridinyl) Ester is a specialized organophosphorus compound with a chloropyridinyl backbone, serving as a critical synthetic intermediate. Its value lies in its precise molecular architecture, enabling the construction of complex molecules for advanced applications. This high-purity intermediate is essential for research and development chemists and process engineers in the agrochemical and pharmaceutical sectors seeking to develop new active ingredients.

Application

• Agrochemical Intermediate: A key building block in the synthesis of novel insecticides and pesticides, leveraging its chloropyridinyl moiety for biological activity.
• Pharmaceutical Research: Used in medicinal chemistry for the development of new drug candidates, particularly those targeting neurological or parasitic diseases.
• Chemical Synthesis: Serves as a versatile phosphorylating and thiophosphorylating agent in organic synthesis to introduce P-S and P-O bonds.
• Ligand Precursor: Can be utilized to develop specialized ligands for catalysis or metal complexation studies.
• Material Science Research: Investigated as a monomer or additive for creating flame-retardant or specialized polymeric materials.

Basic Information

Item	Detail
Product Name	Phosphorochloridothioic Acid, o-Ethyl o-(3,5,6-Trichloro-2-Pyridinyl) Ester
CAS No.	489405-85-8
Molecular Formula	C8H8Cl3NO2PS
Molecular Weight	334.55 g/mol
Synonyms	O-Ethyl O-(3,5,6-Trichloro-2-pyridinyl) Phosphorochloridothioate; Chlorpyrifos-O-Analog Chloride; 3,5,6-Trichloro-2-pyridyl Phosphorochloridothioate O-Ethyl Ester; Phosphorochloridothioic Acid O-Ethyl O-(3,5,6-Trichloro-2-Pyridinyl) Ester; O,O-Diethyl Phosphorochloridothioate Pyridinyl Analog; Chlorpyrifos Chloride Intermediate; TCPE (Trichloropyridinyl Ethyl Ester)
EINECS	Contact for details

Quality Control

Every batch of Phosphorochloridothioic Acid, o-Ethyl o-(3,5,6-Trichloro-2-Pyridinyl) Ester is manufactured under strict quality management systems. We employ advanced analytical techniques including HPLC, GC, NMR, and IR spectroscopy to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee it meets your specific research or process requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C/59-77°F). Keep away from strong bases and incompatible materials such as organic solvents. The container must be kept tightly sealed in a dry environment to prevent moisture ingress and decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Water Content (KF)	≤ 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.