Description

Benzene, 1-Fluoro-4-(1-Pentynyl)- (9Ci) CAS NO 445424-02-2 is a specialized fluorinated aromatic alkyne building block. This compound is valued for its unique molecular structure, which combines a fluorine substituent with a terminal alkyne group on a benzene ring, making it a versatile intermediate in advanced synthetic chemistry. It is primarily sought by research and development chemists in the pharmaceutical and agrochemical industries for constructing complex molecules, particularly in cross-coupling reactions and as a precursor for fluorinated materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), especially those requiring fluorinated aromatic systems to modulate bioavailability and metabolic stability.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and pesticides where the fluorine atom and alkyne functionality can enhance biological activity and environmental persistence.
• Material Science: Serves as a monomer or precursor in the synthesis of specialized polymers, liquid crystals, and organic electronic materials that benefit from fluorinated aromatic units.
• Cross-Coupling Reactions: An essential substrate in Sonogashira, Heck, and other palladium-catalyzed coupling reactions to create complex conjugated systems and molecular scaffolds.
• Chemical Biology & Probe Development: Utilized in click chemistry applications via its terminal alkyne group for bioconjugation and the development of molecular probes and diagnostics.
• Organic Synthesis Research: A valuable reagent for academic and industrial R&D labs exploring new synthetic methodologies and constructing complex natural product analogs.

Basic Information

Product Name	Benzene, 1-Fluoro-4-(1-Pentynyl)- (9Ci)
CAS No.	445424-02-2
Molecular Formula	C₁₁H₁₁F
Molecular Weight	162.20 g/mol
Synonyms	1-Fluoro-4-(pent-1-yn-1-yl)benzene; 4-(1-Pentynyl)fluorobenzene; 1-Fluoro-4-pent-1-ynylbenzene; p-Fluorophenylpent-1-yne; 4-Fluorophenylpent-1-yne; 1-Pentynyl-4-fluorobenzene; (4-Fluorophenyl)pent-1-yne
EINECS	Contact for details

Quality Control

Every batch of Benzene, 1-Fluoro-4-(1-Pentynyl)- (9Ci) undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality assurance protocols are designed to meet the stringent requirements of research and process development. A comprehensive Certificate of Analysis (COA) detailing purity (typically by GC or HPLC), identity confirmation (by NMR, IR, and/or MS), and impurity profiles is provided with each shipment to support your quality and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (typically 15-25°C). This material is light-sensitive (store away from light) and should be handled under an inert atmosphere to prevent degradation. Keep away from strong oxidizers and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
Water Content (KF)	≤ 0.5%

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