Description

4-Methylsulfanyl-2-Oxo-Butanoic Acid is a specialized organic compound featuring both a ketone and a carboxylic acid functional group, modified with a methylthioether moiety. This unique structure makes it a valuable intermediate for synthesizing more complex molecules in pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists working in fine chemical synthesis.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sulfur-containing heterocycles or side chains.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and plant growth regulators.
• Chemical Research: Serves as a versatile precursor for organic synthesis, enabling the introduction of the 4-methylsulfanyl-2-oxo-butanoate moiety into target molecules.
• Biochemical Studies: Potential use as a substrate or inhibitor in enzymatic studies related to ketoacid metabolism.
• Material Science: Can be investigated as a monomer or cross-linking agent for specialized polymers.

Basic Information

Product Name	4-Methylsulfanyl-2-Oxo-Butanoic Acid
CAS No.	583-92-6
Molecular Formula	C5H8O3S
Molecular Weight	148.18 g/mol
Synonyms	4-(Methylthio)-2-oxobutanoic acid; 2-Oxo-4-(methylthio)butyric acid; 4-Methylthio-2-oxobutyric acid; 4-(Methylmercapto)-2-oxobutyric acid; Keto-methionine; 2-Keto-4-methylthiobutyric acid; 2-Oxo-4-methylthiobutanoic acid; α-Keto-γ-methylthiobutyric acid
EINECS	209-513-6

Quality Control

Every batch of 4-Methylsulfanyl-2-Oxo-Butanoic Acid is produced and tested under a strict quality management system. We provide comprehensive analytical data to ensure the material meets the high-purity standards required for research and development applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for each lot 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). Due to its acidic nature, keep away from strong bases and oxidizing agents. Handle and store in accordance with all applicable local and international regulations.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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