Description

2-Methylthiopropionic Acid S-Ethyl Ester is a specialized sulfur-containing ester with a distinctive organoleptic profile. This compound is valued for its role as a versatile flavor and fragrance intermediate, contributing to the creation of savory, meaty, and roasted notes. It is primarily sought after by manufacturers in the flavor and fragrance, food ingredient, and fine chemical synthesis industries.

Application

• Flavor & Fragrance Industry: A key building block for synthesizing savory flavor compounds, particularly those used to replicate meaty, roasted, and umami notes in processed foods, snacks, and savory flavorings.
• Food Ingredient Manufacturing: Used in the production of reaction flavors and process flavorings where its sulfur-containing structure contributes to the development of complex, cooked meat aromas.
• Fine Chemical Synthesis: Serves as a valuable intermediate in organic synthesis for pharmaceuticals, agrochemicals, and other specialty chemicals requiring a thioester functional group.
• Research & Development: Employed in academic and industrial R&D settings for studying sulfur chemistry, flavor chemistry, and as a precursor for novel compound libraries.

Basic Information

Product Name	2-Methylthiopropionic Acid S-Ethyl Ester
CAS No.	2432-50-0
Molecular Formula	C6H12O2S
Molecular Weight	148.22 g/mol
Synonyms	S-Ethyl 2-Methylthiopropionate; Ethyl 2-Methylthiopropionate; 2-Methylthiopropionic Acid Ethyl Ester; Ethyl 2-Methylmercaptopropionate; 2-(Methylthio)propionic Acid Ethyl Ester; Ethyl 2-(Methylthio)propanoate; Propanoic acid, 2-(methylthio)-, ethyl ester; Flavor and Fragrance Intermediate FEMA 4000
EINECS	219-400-4

Quality Control

Our 2-Methylthiopropionic Acid S-Ethyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including gas chromatography (GC), to ensure high purity and consistent organoleptic properties suitable for flavor and fragrance applications. Certificates of Analysis (COA) detailing purity, identity, and specific impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat sources and incompatible materials. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation of quality. Recommended storage temperature is 2-8°C (36-46°F).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	1.020 - 1.040

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