Description

Methyl 2-Mercapto-2-Methyl Propionate is a specialized sulfur-containing ester, a key intermediate in organic synthesis. Its value lies in its unique mercapto-ester functionality, which makes it a versatile building block for introducing sulfur and specific branched-chain structures into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring thioether or thioester linkages.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and fungicides where the sulfur moiety enhances biological activity.
• Polymer Modifier: Serves as a chain transfer agent or a functional monomer to introduce specific properties like odor, adhesion, or reactivity into polymers and resins.
• Flavor & Fragrance Ingredient: Acts as a precursor for sulfur-containing compounds that contribute to savory, meaty, or tropical notes in flavors and fragrances.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecules in academic and industrial R&D settings.
• Lubricant & Fuel Additive Precursor: Used to synthesize additives that improve extreme pressure performance, anti-wear properties, or stability.

Basic Information

Product Name	Methyl 2-Mercapto-2-Methyl Propionate
CAS No.	87123-08-8
Molecular Formula	C5H10O2S
Molecular Weight	134.20 g/mol
Synonyms	2-Mercapto-2-methylpropionic acid methyl ester; Methyl 2-mercaptoisobutyrate; Methyl 2-methyl-2-sulfanylpropanoate; 2-Methyl-2-(methylthio)propanoate; Thioglycolic acid tert-butyl ester (methyl ester); Methyl α-mercaptoisobutyrate; Methyl 2-mercapto-2-methylpropanoate; Methyl 3-mercapto-3-methylbutanoate (tautomeric form)
EINECS	Contact for details

Quality Control

Our Methyl 2-Mercapto-2-Methyl Propionate is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for advanced synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to the presence of a thiol group, this material may be susceptible to oxidation; keep containers tightly sealed when not in use and under an inert atmosphere for long-term storage if specified.

Specification

Item	Specification
Appearance	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)	1.03 - 1.07 g/mL

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