Electronic grade 98% 4-Bromobenzocyclobutene CAS 1073-39-8

Certificate of Analysis-COA 

 Applications 

1.Dual Reactive Handle Building Block: One molecule carries two independent reactive sites, a strained benzocyclobutene ring that opens on heating and an aromatic bromine for cross-coupling, so chemists functionalise one site first and save thermal curing for the final step.

2.Suzuki, Heck And Sonogashira Coupling: The aryl bromide couples readily under palladium catalysis, letting formulators attach the benzocyclobutene unit to aromatic cores, conjugated systems and dye or emitter frameworks to build custom monomers instead of buying off-the-shelf resins.

3.Low-K Dielectric And Semiconductor Packaging: Thermally cured benzocyclobutene units give films with low dielectric constant, good thermal stability and low moisture uptake, which suits interlayer dielectrics and packaging layers where closely spaced metal lines must stay insulated through later process steps.

4.Optoelectronic And OLED Interlayers: Coupling it to light-active molecules gives them a thermally crosslinkable tail, and curing that layer before the next coating makes it solvent resistant, enabling cleaner multilayer stacks in OLEDs and organic solar cells.

5.Clean-Curing Polymer And Liquid Crystal Networks: Benzocyclobutene groups cure by heat without catalyst and without releasing volatiles, so networks form dense and void free, which users value in aerospace composites, protective coatings, encapsulation and heat-fixed liquid crystal alignment films.

 Production Line

We operate 10+ production lines, backed by a well-stocked raw material warehouse.

Our workshop is equipped with automated machinery — ensuring high consistency and precision on every order, from trial samples to full container loads.

Every order follows a standardized workflow. Key quality control points are set at every stage.

 Factory Area

Standardized Process Flow

Production Capacity

Located in Shandong, our factory is approximately 300km from Qingdao Port, enabling fast and cost-effective delivery to customers worldwide.