Description

2-Mercapto-2-Methyl-Propanoic Acid Ethyl Ester is a specialized organosulfur compound with a thiol functional group, serving as a versatile building block and intermediate in advanced chemical synthesis. Its core value lies in its ability to act as a sulfur donor and a precursor for introducing tert-butylthio and other sulfur-containing moieties into target molecules. This product is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and polymer industries seeking to develop novel compounds with specific properties.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly those requiring tert-butylthio or other thioether functionalities.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the sulfur moiety enhances biological activity.
• Polymer Modification: Acts as a chain transfer agent (CTA) or cross-linking agent in radical polymerization processes to control molecular weight and introduce thiol end-groups.
• Flavor & Fragrance Industry: Intermediate for creating sulfur-containing aroma compounds that contribute to savory, roasted, or tropical notes.
• Organic Synthesis Reagent: Employed in nucleophilic substitution and addition reactions to introduce the 2-mercapto-2-methylpropionate group.
• Ligand Precursor: Useful in the preparation of sulfur-based ligands for catalysis and metal complexation.

Basic Information

Product Name	2-Mercapto-2-Methyl-Propanoic Acid Ethyl Ester
CAS No.	33441-50-8
Molecular Formula	C6H12O2S
Molecular Weight	148.22 g/mol
Synonyms	Ethyl 2-Mercapto-2-methylpropionate; 2-Methyl-2-sulfanylpropanoic acid ethyl ester; tert-Butylthioacetic acid ethyl ester; Ethyl 2-(tert-butylthio)acetate; 2-Mercaptoisobutyric acid ethyl ester; Ethyl 2-mercapto-2-methylpropanoate; 2-Methyl-2-mercaptopropionic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Mercapto-2-Methyl-Propanoic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical properties. Our quality commitment supports applications requiring high-purity intermediates under cGMP and ISO guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Contact for details
Specific Gravity (20°C)	Contact for details
Refractive Index (20°C)	Contact for details

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