Description

3(2H)-Thiophenone, 4,5-Dichloro- is a high-purity, specialized heterocyclic building block with the CAS registry number 873303-44-7. This compound is valued for its unique molecular scaffold, which serves as a critical intermediate in advanced organic synthesis and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecules and developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders and infectious diseases.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, leveraging its dichlorinated thiophenone structure for enhanced bioactivity.
• Material Science Research: Serves as a precursor for functionalized polymers and organic electronic materials due to its electron-deficient aromatic system.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes and inhibitors for studying enzyme mechanisms and biological pathways.
• Custom Synthesis & Contract Manufacturing: A vital building block for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the global life sciences market.

Basic Information

Product Name	3(2H)-Thiophenone, 4,5-Dichloro-
CAS No.	873303-44-7
Molecular Formula	C4H2Cl2OS
Molecular Weight	168.03 g/mol
Synonyms	4,5-Dichloro-3(2H)-thiophenone; 4,5-Dichlorothiophen-3(2H)-one; 2H-Thiophen-3-one, 4,5-dichloro-; 4,5-Dichloro-2,3-dihydrothiophen-3-one; 4,5-Dichloro-3-oxo-2,3-dihydrothiophene
EINECS	Contact for details

Quality Control

Every batch of 3(2H)-Thiophenone, 4,5-Dichloro- is manufactured under strict quality management systems. We provide comprehensive analytical data to ensure the material meets the rigorous standards required for research and commercial synthesis. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) with detailed HPLC/GC purity, identity confirmation (IR, NMR), and impurity profiles are available upon request.

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 the container tightly sealed in a dry environment to minimize exposure to moisture. Handle and store in accordance with all applicable regulations.

Specification

Item	Specification
Appearance	White to off-white 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.