Description

4-Bromo-3-Fluorophenyl Cyclopentyl Ketone is a high-purity fluorinated aromatic ketone building block of significant interest in advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex molecules, particularly within the pharmaceutical and agrochemical sectors. Industrial researchers and process chemists need it for constructing novel active pharmaceutical ingredients (APIs) and crop protection agents, where its specific bromine and fluorine substitution pattern offers unique reactivity and physicochemical properties.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of novel drug candidates, especially in kinase inhibitor and CNS-active molecule research.
• Agrochemical Synthesis: Used in the development of next-generation herbicides and fungicides, leveraging the bioactivity imparted by the halogenated aromatic structure.
• Material Science Research: Serves as a monomer or precursor for specialty polymers and liquid crystals, where the ketone and halogen functionalities are utilized.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying enzyme mechanisms and protein interactions.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences industry.

Basic Information

Product Name	4-Bromo-3-Fluorophenyl Cyclopentyl Ketone
CAS No.	898791-58-7
Molecular Formula	C₁₂H₁₂BrFO
Molecular Weight	271.13 g/mol
Synonyms	1-(4-Bromo-3-fluorophenyl)cyclopentan-1-one; Cyclopentanone, 1-(4-bromo-3-fluorophenyl)-; 4-Bromo-3-fluoro-1-cyclopentanoylbenzene; 4-Bromo-3-fluorobenzoylcyclopentane; 898791-58-7; 1-(4-Bromo-3-fluorophenyl)cyclopentanone; (4-Bromo-3-fluorophenyl)(cyclopentyl)methanone
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Fluorophenyl Cyclopentyl Ketone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support compliance with global regulatory frameworks, and our quality systems are designed to meet the stringent requirements of pharmaceutical and advanced chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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