Description

3(2H)-Thiophenone, 4-Chloro-5-Methoxy- is a high-purity, specialized heterocyclic building block with the CAS number 95202-14-5. This compound is valued for its unique molecular scaffold, which is critical for synthesizing advanced materials and active pharmaceutical ingredients (APIs). It is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing novel compounds.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-infective agents.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, leveraging its chlorinated thiophene core.
• Material Science Research: Serves as a precursor for organic electronic materials, such as conductive polymers and organic semiconductors.
• Chemical Research & Development: Employed as a versatile building block in organic synthesis for creating complex heterocyclic libraries.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes and functional pigments due to its specific substitution pattern.

Basic Information

Product Name	3(2H)-Thiophenone, 4-Chloro-5-Methoxy-
CAS No.	95202-14-5
Molecular Formula	C5H5ClO2S
Molecular Weight	164.61 g/mol
Synonyms	4-Chloro-5-methoxy-3(2H)-thiophenone; 4-Chloro-5-methoxythiophen-3(2H)-one; 4-Chloro-5-methoxy-2,3-dihydrothiophen-3-one; 3(2H)-Thiophenone, 4-chloro-5-methoxy-; 4-Chloro-5-methoxy-2,5-dihydrothiophen-3-one; 95202-14-5; 4-Chloro-5-methoxy-thiophen-3-one
EINECS	Contact for details

Quality Control

Our 3(2H)-Thiophenone, 4-Chloro-5-Methoxy- is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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). This compound is light-sensitive (store away from light) and should be handled under an inert atmosphere for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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