Description

3-(Methylthio)Propyl Isobutyrate is a sulfur-containing ester known for its distinctive organoleptic properties. This compound is valued for its ability to impart savory, meaty, and roasted flavor notes, making it a key component in advanced flavor and fragrance creation. It is primarily sought after by manufacturers in the food flavoring, fragrance, and fine chemical synthesis industries for creating complex, authentic taste and aroma profiles.

Application

• Flavor & Fragrance (F&F) Industry: A key ingredient for creating savory, meaty, roasted, and onion-like flavor nuances in processed foods, snacks, and savory applications.
• Food Technology: Used in the development of reaction flavors and process flavorings to enhance the umami and meaty character of products like soups, sauces, and ready-to-eat meals.
• Fragrance Compounds: Employed as a building block in perfume compositions to add sulfurous, tropical fruit, or vegetable-type notes for unique olfactory effects.
• Fine Chemical Synthesis: Serves as a versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and other specialty chemicals.
• Animal Feed Additives: Potential use as a flavor enhancer in feed palatants to improve feed intake.

Basic Information

Product Name	3-(Methylthio)Propyl Isobutyrate
CAS No.	84559-97-7
Molecular Formula	C8H16O2S
Molecular Weight	176.28 g/mol
Synonyms	3-(Methylmercapto)propyl isobutyrate; Methylthiopropyl isobutyrate; Isobutyric acid 3-(methylthio)propyl ester; 3-Methylthiopropyl 2-methylpropanoate; FEMA 3888; 84559-97-7; Propanoic acid, 2-methyl-, 3-(methylthio)propyl ester
EINECS	Contact for details

Quality Control

Our 3-(Methylthio)Propyl Isobutyrate is produced and tested to meet the stringent requirements of the flavor and fragrance industry. Quality is assured through rigorous in-process and final batch testing, including identity confirmation, purity assay, and organoleptic evaluation. Certificates of Analysis (COA) detailing specifications such as purity, odor, and appearance are provided with every shipment to ensure consistent quality and traceability.

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). This product is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Odor	Characteristic, savory, meaty
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.460 - 1.470
Specific Gravity (20/20°C)	1.000 - 1.020

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