Description

3-(Methylthio)Butyric Acid is a sulfur-containing organic acid that serves as a versatile intermediate and flavor/fragrance precursor. Its unique structure, featuring both a carboxylic acid and a thioether functional group, makes it a valuable building block for synthesizing more complex molecules. This compound is primarily sought after by manufacturers in the flavor & fragrance, pharmaceutical, and agrochemical industries for its organoleptic properties and chemical reactivity.

Application

• Flavor & Fragrance Industry: A key intermediate in the synthesis of sulfur-containing flavor compounds, particularly those imparting savory, meaty, or tropical fruit notes.
• Pharmaceutical Synthesis: Used as a chiral building block or precursor in the production of active pharmaceutical ingredients (APIs) and fine chemicals.
• Agrochemical Intermediates: Employed in the synthesis of certain herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Serves as a reagent in organic synthesis for introducing the 3-(methylthio)butyryl moiety.
• Polymer Additives: Can be used as a precursor for specialty monomers or modifiers to impart specific properties to polymers.

Basic Information

Product Name	3-(Methylthio)Butyric Acid
CAS No.	16630-65-2
Molecular Formula	C5H10O2S
Molecular Weight	134.20 g/mol
Synonyms	3-(Methylmercapto)butyric Acid; 3-(Methylsulfanyl)butanoic Acid; 3-(Methylthio)butanoic Acid; β-(Methylthio)butyric Acid; NSC 163045; 3-Methylsulfanylbutyric acid; 3-(Methylsulfanyl)butyric acid
EINECS	240-705-3

Quality Control

Our 3-(Methylthio)Butyric Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key specifications such as assay, identity, and impurity profiles. Our quality commitment ensures the material meets the high standards required for industrial and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Refractive Index (n20D)	1.480 - 1.490
Specific Gravity (20°C)	1.120 - 1.140

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