Description

4-(2-Chlorophenyl)But-3-En-2-One is a versatile organic building block characterized by its chlorinated phenyl and α,β-unsaturated ketone (enone) functional groups. This molecular structure makes it a valuable intermediate for synthesizing more complex chemical entities, particularly in pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists working in fine chemical and active pharmaceutical ingredient (API) manufacturing.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of various drug candidates and active pharmaceutical ingredients (APIs), leveraging its reactive enone moiety for further cyclization or functionalization.
• Agrochemical Synthesis: Used in the research and development of herbicides, fungicides, and insecticides, where the chlorophenyl group is a common structural motif.
• Organic Synthesis Building Block: Serves as a versatile starting material for Michael additions, cycloadditions, and other carbon-carbon bond-forming reactions in academic and industrial laboratories.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of specialized polymers with unique optical or electronic properties.
• Flavor and Fragrance Industry: Potential intermediate for the synthesis of complex aromatic molecules, though specific applications require further derivatization.

Basic Information

Product Name	4-(2-Chlorophenyl)But-3-En-2-One
CAS No.	20766-37-4
Molecular Formula	C10H9ClO
Molecular Weight	180.63 g/mol
Synonyms	1-(2-Chlorophenyl)-3-buten-2-one; 3-Buten-2-one, 1-(2-chlorophenyl)-; 2-Chlorobenzalacetone; (E)-4-(2-Chlorophenyl)but-3-en-2-one; 4-(2-Chlorophenyl)-3-buten-2-one; 2-Chlorochalcone; 1-(2-Chlorophenyl)but-3-en-2-one
EINECS	Contact for details

Quality Control

Our 4-(2-Chlorophenyl)But-3-En-2-One is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, physical characteristics, and impurity profiles is provided with every shipment.

Storage

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

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder or solid
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.