Description

Methyl Thiopropionate CAS NO 5925-75-7 is a sulfur-containing ester valued for its distinctive, powerful aroma profile, making it a key intermediate and flavor/fragrance ingredient. Its primary commercial value lies in its ability to impart savory, meaty, or tropical fruit notes, which are essential for creating complex flavor and fragrance compositions. This compound is particularly sought after by manufacturers in the flavor and fragrance, food processing, and specialty chemical synthesis industries.

Application

• Flavor & Fragrance Industry: A key component in creating savory, meaty, roasted, and tropical fruit flavor profiles for processed foods, snacks, and savory enhancers.
• Food Additive Manufacturing: Used as a synthetic flavoring agent to replicate natural meat, onion, garlic, or pineapple aromas in various food products.
• Perfumery: Employed as a fragrance ingredient to add unique sulfurous, fruity, or savory nuances to fine fragrances and personal care products.
• Chemical Synthesis: Serves as a versatile intermediate or building block in organic synthesis, particularly for introducing thioester functional groups.
• Research & Development: Utilized in analytical chemistry as a reference standard and in R&D for developing new flavor compounds or functional materials.

Basic Information

Product Name	Methyl Thiopropionate
CAS No.	5925-75-7
Molecular Formula	C4H8OS
Molecular Weight	104.17 g/mol
Synonyms	Methyl 3-Thiopropionate; Methyl 3-Mercaptopropionate; 3-(Methylthio)propanoic Acid Methyl Ester; Methyl β-Mercaptopropionate; Methyl 3-Sulfanylpropanoate; Thioglycolic Acid Methyl Ester, Propionic Acid Derivative; Mercaptopropionic Acid Methyl Ester
EINECS	227-667-1

Quality Control

Our Methyl Thiopropionate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) and Infrared Spectroscopy (IR), 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 stability and to minimize oxidation. Recommended storage temperature is 2-8°C (refrigerated) for optimal shelf life.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	1.030 - 1.050
Related Substances (GC)	Total impurities ≤ 2.0%

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