Description

3-Methylthiopropionic Acid is a versatile sulfur-containing organic acid with a distinctive odor profile. This compound serves as a key intermediate and flavor/fragrance precursor in high-value manufacturing processes. It is primarily utilized by industries involved in the synthesis of pharmaceuticals, agrochemicals, and specialty aroma chemicals, where its unique thioether functionality is essential.

Application

• Flavor and Fragrance Industry: A crucial precursor for synthesizing sulfur-containing flavor compounds, such as those found in meat, coffee, and tropical fruit flavorings.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and other fine chemicals requiring a thioether linkage.
• Agrochemical Synthesis: Serves as a building block for producing certain pesticides and herbicides.
• Organic Synthesis: A valuable reagent for introducing the 3-methylthiopropionyl moiety into more complex molecules.
• Research and Development: Employed in academic and industrial R&D for exploring new synthetic pathways and material science applications.

Basic Information

Product Name	3-Methylthiopropionic Acid
CAS No.	646-01-5
Molecular Formula	C4H8O2S
Molecular Weight	120.17 g/mol
Synonyms	3-(Methylthio)propanoic Acid; 3-(Methylmercapto)propionic Acid; β-(Methylthio)propionic Acid; Methylmercaptopropionic Acid; MMPA; 3-Methylsulfanylpropanoic Acid; NSC 403697; 3-Methylmercaptopropanoic Acid
EINECS	211-464-0

Quality Control

Our 3-Methylthiopropionic Acid is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity profiling, and identity confirmation, to ensure it meets the high standards required for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.480 - 1.490
Specific Gravity (20°C)	1.180 - 1.200

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