Description

Benzene, 2-Chloro-4-Ethynyl-1-Fluoro- is a high-purity, multi-functional halogenated aromatic building block of significant interest in advanced organic synthesis. Its unique molecular architecture, featuring chloro, fluoro, and ethynyl substituents, makes it a critical intermediate for constructing complex molecules with tailored electronic and steric properties. This compound is primarily utilized by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates targeting central nervous system (CNS) disorders and oncology.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and pesticides, where the fluorine atom enhances biological activity and metabolic stability.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Chemical Biology & Proteomics: Employed as a tagging reagent or a building block for activity-based probes (ABPs) due to its reactive ethynyl group for "click chemistry" applications.
• Catalyst Ligand Development: Provides a scaffold for creating novel ligands used in transition metal catalysis for asymmetric synthesis.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for custom synthesis projects requiring specific halogenated aromatic intermediates.

Basic Information

Product Name	Benzene, 2-Chloro-4-Ethynyl-1-Fluoro-
CAS No.	1057670-04-8
Molecular Formula	C8H4ClF
Molecular Weight	154.57 g/mol
Synonyms	2-Chloro-4-ethynyl-1-fluorobenzene; 1-Chloro-3-ethynyl-4-fluorobenzene; 4-Ethynyl-2-chloro-1-fluorobenzene; 2-Chloro-4-ethynylfluorobenzene; 4-Ethynyl-2-chlorofluorobenzene; 1-Fluoro-2-chloro-4-ethynylbenzene; 3-Ethynyl-4-fluorochlorobenzene
EINECS	Contact for details

Quality Control

Our Benzene, 2-Chloro-4-Ethynyl-1-Fluoro- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical quality attributes. Our commitment to quality ensures the material meets the stringent requirements for research and cGMP (current Good Manufacturing Practice) applications.

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). Keep away from heat, sparks, open flames, and incompatible materials. Due to the light-sensitive nature of the compound, amber glass containers are recommended for long-term storage.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
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.