Description

Fema 2571 CAS NO 39251-86-0 is a high-purity chemical compound, also known as 2-Methyl-3-tetrahydrofuranthiol, valued for its potent, savory aroma profile reminiscent of roasted meat and coffee. This material is essential for creating authentic, complex flavor and fragrance compositions. It is primarily sought after by flavor and fragrance houses, as well as food and beverage manufacturers, for use in savory flavorings, coffee enhancers, and specialty fragrance applications.

Application

• Savory Flavor Creation: A key ingredient in the formulation of meat, poultry, and seafood flavorings, providing authentic roasted and cooked notes.
• Coffee & Cocoa Enhancement: Used to intensify and round out the rich, roasted character in coffee, cocoa, and chocolate flavor systems.
• Specialty Fragrances: Incorporated into fragrance compounds to add unique savory, roasted, or nutty nuances in fine perfumery and functional products.
• Process Flavorings: Serves as a critical component in reaction flavors (e.g., Maillard reaction systems) for snack foods, soups, and sauces.
• Beverage Industry: Enhances the flavor profile of ready-to-drink (RTD) coffee beverages, protein shakes, and savory nutritional drinks.
• Food Seasonings: Used in dry seasoning blends, gravy powders, and instant noodle flavor packets to deliver depth and umami characteristics.

Basic Information

Product Name	Fema 2571
CAS No.	39251-86-0
Molecular Formula	C5H10OS
Molecular Weight	118.20 g/mol
Synonyms	2-Methyl-3-tetrahydrofuranthiol; 2-Methyl-3-sulfanyltetrahydrofuran; 3-Mercapto-2-methyltetrahydrofuran; FEMA 2571; Meat Mercaptan; Coffee Mercaptan; 2-Methyl-3-thiolanone (incorrect but sometimes used); Roasted coffee thiol
EINECS	Contact for details

Quality Control

Our Fema 2571 is produced under strict quality management systems to ensure batch-to-batch consistency and purity suitable for flavor and fragrance applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards, including FEMA and FCC guidelines where applicable, to guarantee safety and regulatory compliance for global markets.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This compound is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) in the headspace of the container is recommended to preserve stability and organoleptic properties.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.480 - 1.490
Specific Gravity (20/20°C)	1.040 - 1.060
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.