Description

4,4'-Methylenebisbenzenediazonium Bis(Tetrafluoroborate) is a high-purity, light-sensitive diazonium salt used as a critical photoinitiator and cross-linking agent in advanced polymer chemistry. This compound matters for its ability to generate highly reactive species upon exposure to UV light, enabling precise and efficient curing, grafting, and surface modification processes. It is primarily needed by manufacturers in the electronics, printing, and specialty coatings industries for producing photoresists, printing plates, and high-performance adhesives. CAS No. 53091-46-6.

Application

• Photopolymerization Initiator: A key component in UV-curable inks, coatings, and adhesives for rapid, solvent-free curing.
• Photoresist Formulation: Used in the production of printed circuit boards (PCBs) and microelectronics for pattern generation.
• Diazotype Printing: Serves as a light-sensitive compound in engineering blueprint and technical drawing reproduction systems.
• Surface Functionalization: Enables covalent bonding of polymers to various substrates (metals, glass, plastics) for improved adhesion.
• Cross-linking Agent: Used to create three-dimensional polymer networks, enhancing the thermal and mechanical properties of specialty resins.
• Chemical Synthesis: Acts as a versatile intermediate for introducing aromatic groups via diazonium chemistry in organic synthesis.

Basic Information

Product Name	4,4'-Methylenebisbenzenediazonium Bis(Tetrafluoroborate)
CAS No.	53091-46-6
Molecular Formula	C₁₄H₁₀B₂F₈N₄
Molecular Weight	420.86 g/mol
Synonyms	Bis(4-diazoniumphenyl)methane bis(tetrafluoroborate); 4,4'-Diazidodiphenylmethane Bis(BF4) Salt (common misnomer); Methylene bis(4-benzenediazonium) tetrafluoroborate; Bis(4-diazoniophenyl)methane bis(tetrafluoroborate); 4,4'-Methylenedibenzenediazonium Difluoroborate; Photoinitiator BDMB; Light-sensitive crosslinker 53091-46-6.
EINECS	Contact for details

Quality Control

Our 4,4'-Methylenebisbenzenediazonium Bis(Tetrafluoroborate) is manufactured under strict quality protocols to ensure batch-to-batch consistency and high reactivity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and critical impurity profiles. We adhere to relevant industry standards, and our quality system supports traceability for applications requiring GMP or ISO 9001 compliance.

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 and shelf-life. This material is strictly light-sensitive and must be handled under yellow or red safelight conditions to prevent premature decomposition. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
Solubility	Soluble in polar aprotic solvents (e.g., Acetonitrile, DMF)
Heavy Metals	≤ 20 ppm

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