Description

Carbamothioic Acid, (Chlorocarbonyl)Phenyl-, o-Methyl Ester (9Ci) is a specialized organosulfur and carbonyl chloride derivative used as a key synthetic intermediate. This compound matters for its role in constructing complex molecular architectures, particularly in the synthesis of heterocyclic compounds and active pharmaceutical ingredients (APIs). It is primarily needed by research and development chemists in the pharmaceutical, agrochemical, and advanced materials sectors for process development and scale-up activities.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those containing thioamide or heterocyclic moieties.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where its reactive groups enable the creation of specific bioactive structures.
• Chemical Research & Development: Serves as a versatile reagent in organic synthesis laboratories for constructing complex molecules, studying reaction mechanisms, and developing new methodologies.
• Material Science Precursor: Potential use in the development of specialized polymers or ligands for catalytic systems, leveraging its dual functional groups.

Basic Information

Product Name	Carbamothioic Acid, (Chlorocarbonyl)Phenyl-, o-Methyl Ester (9Ci)
CAS No.	73280-66-7
Molecular Formula	C9H8ClNO2S
Molecular Weight	229.68 g/mol
Synonyms	o-Methyl O-Phenyl Chlorothioformate; Phenyl Chlorothioformate o-Methyl Ester; Methyl Phenylchlorothioformate; (Chlorocarbonyl)phenyl Carbamothioic Acid o-Methyl Ester; NSC 403058; Carbamothioic acid, N-(chlorocarbonyl)-, S-phenyl ester; Phenyl chlorothioformate methyl ester
EINECS	Contact for details

Quality Control

Our Carbamothioic Acid, (Chlorocarbonyl)Phenyl-, o-Methyl Ester (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory 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, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

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%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%

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