Description

Octanethioic Acid S-Methyl Ester is a specialized organosulfur compound with a thioester functional group, serving as a versatile building block and intermediate in advanced chemical synthesis. Its primary value lies in its ability to act as an acyl transfer agent and a precursor for introducing sulfur-containing moieties into target molecules. This product is essential for R&D and production chemists in the pharmaceutical, agrochemical, and material science sectors, where precise molecular construction is critical.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring thioester or modified fatty acid chains.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators that incorporate sulfur-based functional groups for enhanced activity.
• Polymer & Material Science: Acts as a monomer or modifier in the creation of specialty polymers, coatings, and materials with specific chemical resistance or surface properties.
• Flavor & Fragrance Industry: Intermediate for synthesizing sulfur-containing aroma compounds that contribute to savory, roasted, or tropical notes.
• Organic Synthesis Reagent: Employed as an acylating agent or a protected form of octanethioic acid in multi-step synthetic routes in research laboratories.
• Lubricant & Fuel Additive Precursor: Serves as a starting material for manufacturing extreme pressure additives and anti-wear agents.

Basic Information

Product Name	Octanethioic Acid S-Methyl Ester
CAS No.	2432-83-9
Molecular Formula	C9H18OS
Molecular Weight	174.30 g/mol
Synonyms	S-Methyl octanethioate; Methyl octanethioate; Octanethioic acid methyl thioester; Methyl thiocaprylate; Thiocaprylic acid S-methyl ester; Caprylic thioic acid S-methyl ester; 1-Heptanecarbothioic acid S-methyl ester; NSC 66469
EINECS	219-407-7

Quality Control

Our Octanethioic Acid S-Methyl Ester is produced under strict quality management protocols. Every batch undergoes rigorous analytical testing to ensure high chemical purity and consistency. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles, supporting compliance with cGMP and ISO 9001 standards for reliable integration into your supply chain.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.460 - 1.470
Density (20°C)	0.92 - 0.96 g/mL

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