Description

p-(Hydroxymethyl)Benzenediazonium Tetrafluoroborate is a specialized diazonium salt compound, a key intermediate in organic synthesis and materials science. Its primary value lies in its ability to act as a versatile photoactive crosslinking agent and a source of reactive aryl cations under mild conditions. This makes it essential for researchers and manufacturers in the photoresist, polymer modification, and surface functionalization industries, where precise chemical grafting is required.

Application

• Photoresist and Photoinitiator Formulations: Used as a key component in UV-curable coatings, printing plates, and microelectronics fabrication for its efficient photodecomposition and crosslinking properties.
• Surface Modification and Immobilization: Enables covalent attachment of biomolecules, dyes, or functional groups to polymers, glass, and metal surfaces for biosensors and advanced materials.
• Polymer Functionalization: Serves as a grafting agent to introduce aromatic or reactive sites into polymer backbones, modifying physical and chemical properties.
• Organic Synthesis Intermediate: Acts as a precursor for aryl cations in Sandmeyer and related reactions to synthesize substituted aromatic compounds, heterocycles, and dyes.
• Diazonium Chemistry Research: A valuable reagent in academic and industrial R&D for studying reaction mechanisms and developing new catalytic or synthetic pathways.

Basic Information

Product Name	p-(Hydroxymethyl)Benzenediazonium Tetrafluoroborate
CAS No.	78246-54-5
Molecular Formula	C7H7BF4N2O
Molecular Weight	221.95 g/mol
Synonyms	4-(Hydroxymethyl)benzenediazonium tetrafluoroborate; p-Hydroxymethylbenzenediazonium BF4-; (4-Hydroxymethylphenyl)diazonium tetrafluoroborate; Diazonium salt BF4-; Benzenediazonium, 4-(hydroxymethyl)-, tetrafluoroborate(1-); Photoactive diazonium salt; Aryl diazonium tetrafluoroborate
EINECS	Contact for details

Quality Control

Our p-(Hydroxymethyl)Benzenediazonium Tetrafluoroborate is produced under stringent conditions to ensure batch-to-batch consistency and high reactivity. Each lot undergoes comprehensive analytical testing, including HPLC for purity, NMR for structural confirmation, and elemental analysis. A Certificate of Analysis (COA) detailing all specifications 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 temperatures between 2°C and 8°C (refrigerated) to maximize stability. The container should be kept tightly sealed in a desiccator to minimize exposure to atmospheric moisture. Keep away from heat, sparks, and incompatible materials such as strong bases and reducing agents.

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%
Melting Point	Decomposes

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