Description

Ethanethioic Acid, S-[2-(Chlorocarbonyl)Phenyl] Ester (9Ci) is a specialized organic chemical intermediate with a unique thioester and acid chloride functional group architecture. This compound is valued for its dual reactivity, serving as a key building block in the synthesis of complex molecules, particularly in advanced pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists in fine chemical and active pharmaceutical ingredient (API) manufacturing sectors.

Application

• As a versatile acylating and thioester transfer agent in organic synthesis.
• Key intermediate for the synthesis of pharmaceutical candidates, including potential enzyme inhibitors and receptor modulators.
• Building block in the research and development of novel agrochemicals, such as herbicides and fungicides.
• Used in the preparation of functionalized polymers and specialty materials with tailored properties.
• Intermediate for synthesizing liquid crystal compounds and other advanced electronic materials.
• Reagent in peptide mimetics and bio-conjugation chemistry research.

Basic Information

Product Name	Ethanethioic Acid, S-[2-(Chlorocarbonyl)Phenyl] Ester (9Ci)
CAS No.	62972-22-9
Molecular Formula	C9H7ClO2S
Molecular Weight	214.67 g/mol
Synonyms	2-(Acetylthio)benzoyl chloride; S-(2-Chlorocarbonylphenyl) ethanethioate; Acetic acid, thio-, S-[2-(chlorocarbonyl)phenyl] ester; 2-Acetylthiobenzoyl chloride; Ethanethioic acid, S-(2-chlorocarbonylphenyl) ester; Benzoyl chloride, 2-(acetylthio)-
EINECS	Contact for details

Quality Control

Our Ethanethioic Acid, S-[2-(Chlorocarbonyl)Phenyl] Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and functional group verification, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) with detailed specifications are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent derivative, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and degradation. Keep away from heat, open flames, and incompatible materials such as bases, alcohols, and amines.

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.