Description

4-Methoxybenzenediazonium Tetrafluoroborate is a versatile diazonium salt primarily used as a key aryl radical precursor and arylating agent in organic synthesis. Its value lies in enabling efficient, high-yield coupling reactions for the introduction of the 4-methoxyphenyl moiety into complex molecular architectures. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries seeking to build novel aromatic structures.

Application

• Pharmaceutical Intermediate: Aryl radical precursor for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Key building block for creating herbicides, fungicides, and other crop protection agents with methoxyphenyl groups.
• Polymer & Material Science: Used in the surface modification of polymers and the synthesis of functionalized materials via diazonium chemistry.
• Dye & Pigment Manufacturing: Intermediate in the production of azo dyes and specialty colorants.
• Cross-Coupling Reactions: Serves as an electrophilic aryl source in Sandmeyer and related metal-catalyzed coupling reactions.
• Research & Development: Fundamental reagent in academic and industrial R&D for exploring new synthetic methodologies.

Basic Information

Product Name	4-Methoxybenzenediazonium Tetrafluoroborate
CAS No.	459-64-3
Molecular Formula	C7H7BF4N2O
Molecular Weight	237.95 g/mol
Synonyms	p-Anisidine Diazonium Tetrafluoroborate; 4-Methoxyphenyldiazonium Tetrafluoroborate; Diazonium, (4-methoxyphenyl)-, tetrafluoroborate(1-); p-Methoxybenzenediazonium Tetrafluoroborate; Anisole-4-diazonium Tetrafluoroborate; (4-Methoxyphenyl)diazonium Tetrafluoroborate; 4-Methoxybenzenediazonium, Tetrafluoroborate
EINECS	Contact for details

Quality Control

Our 4-Methoxybenzenediazonium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition and oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light beige crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Assay	95.0 - 102.0%
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.