Description

Propyl Methanethiosulfonate is a specialized organosulfur compound, also known as methylsulfonyl thiocyanate propyl ester, valued for its role as a versatile chemical building block and reagent. Its primary commercial significance lies in its utility for introducing protected thiol groups or as a precursor in the synthesis of more complex sulfur-containing molecules. This product is essential for research and development chemists, process engineers, and manufacturers operating in the pharmaceutical, agrochemical, and advanced materials sectors, where precise molecular modification is critical.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring thioether or disulfide linkages.
• Bioconjugation Reagent: Facilitates the site-specific modification of proteins, peptides, and antibodies for drug delivery and diagnostic applications.
• Polymer Chemistry: Acts as a functional monomer or cross-linking agent in the production of specialty polymers with tailored properties.
• Agrochemical Synthesis: Serves as a key intermediate in the manufacture of certain herbicides, fungicides, and plant growth regulators.
• Chemical Research: Employed in organic synthesis as a methylsulfonylating or thiol-protecting group transfer agent.
• Material Science: Used in surface functionalization and the creation of self-assembled monolayers (SAMs) on various substrates.

Basic Information

Product Name	Propyl Methanethiosulfonate
CAS No.	24387-69-7
Molecular Formula	C₄H₈O₂S₂
Molecular Weight	152.23 g/mol
Synonyms	Methanesulfonic Acid S-Propyl Ester; S-Propyl Methanethiosulfonate; Methylsulfonyl Thiocyanate Propyl Ester; Propyl Methanesulfonothioate; PMTS; 1-Propanethiol, S-(methylsulfonyl)-; Methyl sulfonyl propyl disulfide (related form)
EINECS	Contact for details

Quality Control

Our Propyl Methanethiosulfonate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assessment 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 to guarantee traceability and consistency for your critical 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 heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in amber glass or opaque packaging during storage.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Impurities (HPLC)	≤ 2.0% (total)

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