Description

4-Hydroxy-2,5-Dimethylthiophen-3(2H)-One is a high-purity, versatile sulfur-containing heterocyclic compound. This specialty chemical serves as a valuable flavor and fragrance intermediate, imparting meaty, savory, and roasted notes. It is essential for manufacturers in the flavor & fragrance, food ingredient, and fine chemical synthesis industries seeking consistent quality and reliable supply for their formulations.

Application

• Flavor & Fragrance Industry: A key building block for creating savory, meaty, and roasted flavor profiles in processed foods, snacks, and savory seasonings.
• Food Ingredient Manufacturing: Used in the synthesis of reaction flavors and process flavorings to enhance umami and meat-like characteristics.
• Fine Chemical Synthesis: Acts as a versatile intermediate in organic synthesis for pharmaceuticals, agrochemicals, and other specialty chemicals.
• Research & Development: Employed in academic and industrial R&D for studying heterocyclic chemistry and developing novel compounds.
• Cosmetic & Personal Care: Potential use in fragrance compositions for specialty cosmetic products.

Basic Information

Product Name	4-Hydroxy-2,5-Dimethylthiophen-3(2H)-One
CAS No.	26494-10-0
Molecular Formula	C6H8O2S
Molecular Weight	144.19 g/mol
Synonyms	4-Hydroxy-2,5-dimethyl-3(2H)-thiophenone; 2,5-Dimethyl-4-hydroxy-3(2H)-thiophenone; 4-Hydroxy-2,5-dimethylthiophen-3-one; Sotolone; Fenugreek lactone; Caramel furanone; Sugar lactone; Flavor lactone
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-2,5-Dimethylthiophen-3(2H)-One is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC and GC analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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