Description

2(5 H)-Thiophenone is a specialized heterocyclic organic compound with the CAS number 3354-32-3, serving as a valuable building block in advanced chemical synthesis. Its unique thiophene-based structure makes it a critical intermediate for developing pharmaceuticals, agrochemicals, and functional materials. This product is essential for R&D chemists and process engineers in the fine chemical, pharmaceutical, and material science industries seeking to innovate and optimize their synthetic pathways.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of active pharmaceutical ingredients (APIs), particularly those containing thiophene or dihydrothiophene moieties.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic reactivity.
• Material Science Research: Acts as a precursor for organic semiconductors, conductive polymers, and other advanced electronic materials due to the thiophene ring system.
• Fine Chemical Production: Employed in custom synthesis and contract manufacturing for creating complex, high-value specialty chemicals.
• Academic & Industrial R&D: Serves as a versatile starting material for methodological development and exploring new chemical reactions in laboratory settings.

Basic Information

Product Name	2(5 H)-Thiophenone
CAS No.	3354-32-3
Molecular Formula	C4H4OS
Molecular Weight	100.14 g/mol
Synonyms	2(5H)-Thiophenone; 2-Thiophenone, 5H-; 5H-Thiophen-2-one; 3,4-Dihydro-2H-thiophen-5-one; Dihydro-2(3H)-thiophenone; 2-Oxothiolane; γ-Thiobutyrolactone; Tetrahydrothiophen-2-one
EINECS	222-143-8

Quality Control

Our 2(5 H)-Thiophenone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (IR, NMR), to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for pharmaceutical and industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in dark conditions.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.