Description

4-Chlorophenyl Chlorothionoformate is a specialized organosulfur reagent featuring both a chlorothionoformate and a chlorophenyl group. This compound matters as a versatile building block for synthesizing more complex molecules, particularly in the development of agrochemicals and pharmaceuticals. It is primarily needed by R&D chemists and process development scientists in the fine chemical, crop protection, and pharmaceutical intermediate sectors.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of herbicides, fungicides, and insecticides.
• Pharmaceutical Synthesis: Serves as a reagent for introducing the thiocarbamate or thionoester moiety into active pharmaceutical ingredients (APIs).
• Polymer Chemistry: Used in the preparation of specialty monomers and polymers with specific functional properties.
• Chemical Research: Employed as a versatile electrophile in organic synthesis for C-S and C-O bond formation.
• Ligand and Catalyst Preparation: Useful for modifying ligands in coordination chemistry and catalysis.

Basic Information

Product Name	4-Chlorophenyl Chlorothionoformate
CAS No.	937-64-4
Molecular Formula	C7H4Cl2OS
Molecular Weight	207.08 g/mol
Synonyms	p-Chlorophenyl Chlorothionoformate; 4-Chlorophenyl Chlorothioformate; Chlorothionoformic Acid 4-Chlorophenyl Ester; Carbonochloridothioic Acid O-(4-Chlorophenyl) Ester; 4-Chlorophenyl Chlorosulfenylformate; (4-Chlorophenoxy)(chloro)methanethione; NSC 403119
EINECS	213-340-5

Quality Control

Our 4-Chlorophenyl Chlorothionoformate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
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.