Description

4,4'-Biphenylbisdiazonium Fluoroborate is a high-purity diazonium salt primarily used as a versatile photoactive cross-linking agent and polymerization initiator. Its core value lies in its ability to generate reactive species upon exposure to light or heat, enabling precise chemical modifications and surface functionalization. This compound is essential for manufacturers in the electronics, specialty polymer, and advanced materials sectors who require reliable, high-performance photoinitiators for demanding applications.

Application

• Photoresist and PCB Manufacturing: As a key photoacid generator (PAG) in chemically amplified photoresists for semiconductor and printed circuit board fabrication.
• Polymer Cross-linking & Curing: Initiating cross-linking reactions in UV-curable coatings, inks, adhesives, and composite materials.
• Surface Modification: For grafting polymers or creating functional layers on metals, glass, and polymers via diazonium chemistry.
• Diazotype and Imaging Materials: Serving as a light-sensitive component in specialty photographic papers and imaging systems.
• Organic Synthesis Intermediate: Used in the synthesis of biphenyl derivatives, liquid crystals, and other complex organic molecules.
• Research & Development: A critical reagent in academic and industrial R&D for studying reaction mechanisms and developing new photochemical processes.

Basic Information

Product Name	4,4'-Biphenylbisdiazonium Fluoroborate
CAS No.	14239-22-6
Molecular Formula	C12H8B2F8N4
Molecular Weight	373.64 g/mol
Synonyms	4,4'-Biphenylbis(diazonium) bis(tetrafluoroborate); p,p'-Biphenylbis(diazonium tetrafluoroborate); Bis(4-diazoniophenyl) tetrafluoroborate; 4,4'-Diazidobiphenyl bis(tetrafluoroborate) (common misnomer); Biphenyl-4,4'-bis(diazonium) tetrafluoroborate; [1,1'-Biphenyl]-4,4'-bis(diazonium), tetrafluoroborate(1-); Light-sensitive biphenyl diazonium salt
EINECS	Contact for details

Quality Control

Our 4,4'-Biphenylbisdiazonium Fluoroborate is manufactured under strict quality protocols to ensure batch-to-batch consistency and high performance. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy. We provide a detailed Certificate of Analysis (COA) with every shipment, documenting key parameters such as assay, moisture content, and ionic impurities. Our quality system is designed to meet the stringent requirements of electronic and photochemical grade materials.

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) or as specified on the label. This material is strictly light-sensitive and hygroscopic (moisture-sensitive). Containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition from moisture and oxygen. 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 reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Fluoroborate Content (Titration)	Conforms to theoretical value
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in polar aprotic solvents (e.g., DMF, DMSO, Acetonitrile)

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