Description

2-(Ethylthio)Acetic Acid Methyl Ester is an organosulfur compound featuring both a thioether and an ester functional group, making it a versatile intermediate for chemical synthesis. This compound matters for its role in constructing complex molecules, particularly in the development of pharmaceuticals and agrochemicals where the ethylthio moiety is a key structural element. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries seeking to introduce sulfur-containing functionalities into their target molecules.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those containing sulfur heterocycles or thioether linkages.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the ethylthio group contributes to biological activity.
• Flavor & Fragrance Ingredient: Serves as a precursor for sulfur-containing flavor compounds that impart meaty, roasted, or tropical notes.
• Polymer Modification: Acts as a monomer or cross-linking agent in the production of specialty polymers with unique properties.
• Organic Synthesis Reagent: Utilized in Michael additions, alkylation reactions, and as a scaffold for further functionalization in research laboratories.
• Ligand Precursor: Can be hydrolyzed and modified to create chelating ligands for metal catalysis.

Basic Information

Product Name	2-(Ethylthio)Acetic Acid Methyl Ester
CAS No.	20600-64-0
Molecular Formula	C5H10O2S
Molecular Weight	134.20 g/mol
Synonyms	Methyl 2-(Ethylthio)acetate; Methyl (Ethylthio)acetate; 2-(Ethylthio)acetic acid methyl ester; Acetic acid, 2-(ethylthio)-, methyl ester; Ethylthioacetic acid methyl ester; Methyl ethylthioacetate; NSC 88431
EINECS	243-925-4

Quality Control

Our 2-(Ethylthio)Acetic Acid Methyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request and provided with each shipment to support your quality assurance protocols.

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 heat, sparks, and open flame. The container should be kept tightly sealed when not in use to minimize moisture absorption and prevent volatilization.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.460 - 1.470
Density (20°C)	1.05 - 1.10 g/mL

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