Description

2α,5α-Dimethyltetrahydrothiophene is a specialized sulfur-containing heterocyclic compound with a distinct organoleptic profile. This chemical matters as a versatile intermediate and flavor/fragrance ingredient, prized for its unique sulfurous and savory notes. Key industries that need it include flavor and fragrance manufacturing, where it serves as a building block for complex aroma chemicals, as well as pharmaceutical and agrochemical research for developing novel active ingredients.

Application

• Flavor & Fragrance Industry: Used as a key intermediate in the synthesis of complex sulfur-containing aroma molecules for savory flavors, meat replacers, and specialty fragrances.
• Pharmaceutical Intermediates: Serves as a valuable building block in the research and development of novel drug candidates, particularly those containing thiophene or saturated sulfur heterocycles.
• Agrochemical Synthesis: Employed in the production of certain pesticides and herbicides where the thiophene ring structure contributes to biological activity.
• Chemical Research & Development: Acts as a starting material or reagent in organic synthesis for exploring new chemical entities and catalytic processes.
• Specialty Polymer Additives: Investigated for use in modifying polymer properties due to its sulfur content and specific stereochemistry.

Basic Information

Product Name	2α,5α-Dimethyltetrahydrothiophene
CAS No.	5161-13-7
Molecular Formula	C6H12S
Molecular Weight	116.22 g/mol
Synonyms	2,5-Dimethyltetrahydrothiophene; 2,5-Dimethylthiolane; 2,5-Dimethyl-thiolane; Tetrahydro-2,5-dimethylthiophene; 2,5-Dimethyltetramethylene sulfide; 2,5-Dimethylthiacyclopentane; FEMA 4316; (2R,5R)-2,5-Dimethyltetrahydrothiophene; (2S,5S)-2,5-Dimethyltetrahydrothiophene
EINECS	225-931-6

Quality Control

Our 2α,5α-Dimethyltetrahydrothiophene is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and isomer content is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated place away from heat and ignition sources. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep container tightly sealed when not in use to prevent evaporation and minimize exposure to air.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Isomer Ratio (2α,5α)	≥ 95%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.480 - 1.490
Specific Gravity (20/4°C)	0.920 - 0.940

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