Description

4-Chlorothiobenzoic Acid o-Methyl Ester is a specialized organic sulfur compound that serves as a versatile synthetic intermediate in advanced chemical manufacturing. Its value lies in its unique molecular structure, which combines a chlorinated aromatic ring with a thiobenzoate ester group, enabling precise chemical modifications. This compound is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and material science industries for constructing complex molecules and developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Precursor: Serves as a starting material for creating specialized ligands used in transition metal catalysis and coordination chemistry.
• Material Science Research: Employed in the development of advanced polymers, liquid crystals, and organic electronic materials due to its aromatic and ester functionalities.
• Chemical Biology Probe: Useful for modifying proteins or other biomolecules to study biological function and interaction.
• Custom Synthesis and Contract Manufacturing: A critical reagent for fine chemical producers offering bespoke synthesis services to the life sciences sector.

Basic Information

Product Name	4-Chlorothiobenzoic Acid o-Methyl Ester
CAS No.	5925-49-5
Molecular Formula	C8H7ClOS
Molecular Weight	186.66 g/mol
Synonyms	4-Chlorothiobenzoic Acid Methyl Ester; Methyl 4-Chlorothiobenzoate; 4-Chlorobenzenecarbothioic Acid Methyl Ester; o-Methyl 4-Chlorothiobenzoate; Thiobenzoic Acid, 4-Chloro-, Methyl Ester; Benzenecarbothioic acid, 4-chloro-, methyl ester; Methyl 4-chlorobenzenecarbothioate
EINECS	227-667-9

Quality Control

Our production of 4-Chlorothiobenzoic Acid o-Methyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) with each shipment, documenting all critical quality attributes. Our commitment to reliable supply and batch-to-batch consistency supports your critical R&D and scale-up processes.

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). Keep away from strong oxidizing agents and strong bases. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.