Description

5-Methylthiothiophen-2(5H)-One is a specialized sulfur-containing heterocyclic compound that serves as a valuable synthetic intermediate. Its unique thiophenone scaffold with a methylthio substituent makes it a versatile building block for constructing complex molecular architectures in advanced research and development. This compound is primarily sought after by pharmaceutical researchers and fine chemical manufacturers for applications in medicinal chemistry and material science.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting neurological and anti-infective pathways.
• Agrochemical Research: Used in the development of new fungicides and herbicides, leveraging its sulfur heterocycle for bioactivity.
• Material Science: Serves as a precursor for organic semiconductors and conductive polymers due to its electron-rich thiophene core.
• Ligand Synthesis: Employed in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Flavor & Fragrance Chemistry: Acts as an intermediate for creating sulfur-containing aroma compounds.
• Academic & Industrial R&D: A crucial reagent for methodological studies in organic synthesis and heterocyclic chemistry.

Basic Information

Product Name	5-Methylthiothiophen-2(5H)-One
CAS No.	7210-65-3
Molecular Formula	C5H6OS2
Molecular Weight	146.23 g/mol
Synonyms	5-(Methylthio)thiophen-2(5H)-one; 2(5H)-Thiophenone, 5-(methylthio)-; 5-Methylmercapto-2(5H)-thiophenone; 5-Methylthio-2(5H)-thiophenone; 5-Methylsulfanylthiophen-2(5H)-one; 5-Methylthiothiophen-2-one; 5-Methylthio-2-thiophenone
EINECS	Contact for details

Quality Control

Our 5-Methylthiothiophen-2(5H)-One is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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