Description

Methanesulfenic Acid Chloride is a highly reactive organosulfur compound primarily used as a key synthetic intermediate. Its value lies in its ability to introduce the methanesulfenyl chloride functional group, enabling the synthesis of complex sulfenylated molecules. This chemical is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of sulfenamide-based drugs and other sulfur-containing active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and pesticides that incorporate sulfenyl moieties for enhanced efficacy.
• Polymer Modification: Acts as a functionalizing agent to introduce sulfur-containing groups into polymer chains, altering material properties like adhesion or reactivity.
• Organic Synthesis Reagent: Employed in research laboratories for the sulfenylation of various nucleophiles, including alcohols, amines, and carbanions.
• Ligand and Catalyst Preparation: Serves as a precursor for creating specialized ligands and catalysts used in asymmetric synthesis and metal complexation.
• Cross-linking Agent: Utilized in the formulation of specialty resins and elastomers where sulfur-based cross-links are required.

Basic Information

Product Name	Methanesulfenic Acid Chloride
CAS No.	5813-48-9
Molecular Formula	CH3ClOS
Molecular Weight	98.55 g/mol
Synonyms	Methanesulfenyl Chloride; Methylsulfenyl Chloride; Thiomethanol Chloride; Methyl Thionochloridate; CH3SCl; Methyl Sulfenyl Chloride; Methanethiol, Chloro-
EINECS	Contact for details

Quality Control

Our Methanesulfenic Acid Chloride is produced and tested under stringent quality management protocols to ensure batch-to-batch consistency and reliability for your synthetic processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as purity, identity, and impurity profiles. Our quality systems are designed to support applications requiring high-purity intermediates, including cGMP manufacturing where applicable.

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 and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, oxidizing agents, and water.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 95.0%
Purity (HPLC)	≥ 90.0%
Water Content (KF)	≤ 0.5%

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