Description

3-Methylthio-2-Methylpropanoic Acid is a specialized organosulfur compound characterized by its thioether and carboxylic acid functional groups. This unique structure makes it a valuable intermediate for synthesizing complex molecules, particularly in the flavor and fragrance and pharmaceutical industries. It is primarily sought after by R&D chemists and production specialists for creating sulfur-containing aroma compounds and as a building block in active pharmaceutical ingredient (API) development.

Application

• Flavor and Fragrance Industry: A key intermediate in the synthesis of sulfur-containing aroma chemicals, such as those imparting meaty, savory, or tropical fruit notes.
• Pharmaceutical Synthesis: Serves as a versatile building block for the development of APIs and other bioactive molecules containing thioether linkages.
• Agrochemical Intermediates: Used in the research and production of novel pesticides and herbicides where the methylthio group is a critical functional moiety.
• Organic Synthesis: Employed in academic and industrial research as a reagent for introducing the 3-methylthio-2-methylpropionyl moiety into target molecules.
• Fine Chemical Production: Acts as a precursor for various specialty chemicals used in electronics, materials science, and catalysis.

Basic Information

Product Name	3-Methylthio-2-Methylpropanoic Acid
CAS No.	62574-23-6
Molecular Formula	C5H10O2S
Molecular Weight	134.20 g/mol
Synonyms	2-Methyl-3-(methylthio)propanoic acid; 3-(Methylthio)-2-methylpropionic acid; β-Methylthioisobutyric acid; 3-Methylmercapto-2-methylpropionic acid; 2-Methyl-3-methylthiopropanoic acid; 3-Methylthio-2-methylpropionic acid; NSC 403107
EINECS	Contact for details

Quality Control

Our 3-Methylthio-2-Methylpropanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets the high standards required for fine chemical synthesis. Certificates of Analysis (COA) documenting purity, physical properties, and test results are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.480 - 1.490
Density (20°C)	1.10 - 1.20 g/mL

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