Description

4-Fluorobenzenediazonium Tetrafluoroborate is a versatile and highly reactive diazonium salt used as a key building block in organic synthesis. Its primary value lies in enabling the efficient introduction of the 4-fluorophenyl group into target molecules via diazonium chemistry, such as Sandmeyer and Balz-Schiemann reactions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials industries, where it facilitates the synthesis of complex fluorinated aromatic compounds.

Application

• Pharmaceutical Intermediate: A critical precursor for synthesizing fluorinated active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of fluorinated herbicides, pesticides, and fungicides to enhance their efficacy and environmental profile.
• Advanced Material Production: Serves as a monomer or functionalization agent in creating specialty polymers, liquid crystals, and electronic materials.
• Dye and Pigment Manufacturing: Employed in the synthesis of fluorinated azo dyes and pigments for high-performance applications.
• Cross-Coupling Reactions: Acts as an electrophile in palladium-catalyzed cross-coupling reactions to form biaryl structures.
• Fluorination Chemistry: A key reagent in the Balz-Schiemann reaction for the preparation of aryl fluorides.
• Research & Development: A valuable tool for academic and industrial R&D labs exploring new fluorinated compounds and reaction pathways.

Basic Information

Product Name	4-Fluorobenzenediazonium Tetrafluoroborate
CAS No.	459-45-0
Molecular Formula	C6H4BF5N2
Molecular Weight	209.91 g/mol
Synonyms	p-Fluorobenzenediazonium Tetrafluoroborate; 4-Fluorobenzenediazonium BF4; Diazonium, (p-fluorophenyl)-, tetrafluoroborate(1-); (4-Fluorophenyl)diazonium Tetrafluoroborate; 4-Fluorophenyldiazonium Tetrafluoroborate; 1-Fluoro-4-diazoniobenzene Tetrafluoroborate; Fluorobenzenediazonium Tetrafluoroborate
EINECS	Contact for details

Quality Control

Our 4-Fluorobenzenediazonium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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). Due to its hygroscopic and light-sensitive nature, the container must be kept tightly sealed in a dry environment and handled under inert atmosphere when appropriate to prevent decomposition.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Solubility	Soluble in polar aprotic solvents (e.g., acetonitrile, DMF)

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