Description

Benzenediazonium,Tetrafluoroborate CAS NO 369-57-3 is a versatile and highly reactive diazonium salt, primarily valued as a key aryl radical precursor and arylating agent in organic synthesis. Its primary commercial importance lies in enabling efficient and selective carbon-carbon and carbon-heteroatom bond formation under mild conditions. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries, where it is used to construct complex aromatic frameworks.

Application

• Aryl Radical Generation: Serves as a crucial precursor for the generation of aryl radicals in various radical chain reactions, including the Meerwein arylation and the Gomberg-Bachmann reaction.
• Sandmeyer-Type Reactions: Used in the synthesis of aryl halides, cyanides, and other derivatives via diazonium salt displacement with nucleophiles.
• Palladium-Catalyzed Cross-Couplings: Acts as an efficient electrophilic coupling partner in Buchwald-Hartwig amination and related transformations for C-N bond formation.
• Dye & Pigment Intermediates: Employed in the production of azo dyes and pigments, where the diazonium group is coupled with aromatic amines or phenols.
• Surface Modification & Functionalization: Utilized for grafting aromatic groups onto material surfaces (e.g., polymers, carbon nanotubes) to alter surface properties.
• Photolithography & Photoresists: Applied in the electronics industry as a photoactive compound in certain photoresist formulations.

Basic Information

Product Name	Benzenediazonium,Tetrafluoroborate
CAS No.	369-57-3
Molecular Formula	C6H5BF4N2
Molecular Weight	191.93 g/mol
Synonyms	Benzenediazonium tetrafluoroborate; Phenyldiazonium tetrafluoroborate; Diazonium, phenyl-, tetrafluoroborate(1-); Benzenediazonium fluoroborate; Phenyl diazonium BF4-; Arenediazonium tetrafluoroborate salt; Benzenediazonium borofluoride; EINECS 206-736-4
EINECS	206-736-4

Quality Control

Our Benzenediazonium Tetrafluoroborate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high reactivity. Each lot undergoes comprehensive analytical testing, including NMR, FT-IR, and HPLC analysis, to confirm identity, purity, and the absence of critical impurities. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C (refrigerated) to maximize stability. This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) when not in use to prevent decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Melting Point	Decomposes
Heavy Metals (as Pb)	≤ 20 ppm

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