4-(ethenylsulfonyl)benzenamine

4-(Vinylsulfonyl)aniline (CAS 25781-90-2) is a bifunctional monomer combining a reactive vinyl sulfone group with a primary aromatic amine.

Where is 4-(ethenylsulfonyl)benzenamine used?

• Polymer synthesis: targeted building block with two distinct reactive sites
• Crosslinking systems: dual reactivity for complex chemical structures
• Textile and fiber processing: reactive crosslinker for cellulosic substrates, enabling durable bonding between fiber and finishing agents
• Specialty resins: amine group participates in curing reactions while the vinyl sulfone group drives chain extension or network formation
• Leather treatment and paper chemistry: crosslinked coatings that improve wet strength
• It also serves as a monomer in synthesizing functional polymers with pendant sulfonyl-aniline units for ion-exchange materials and specialty membranes.

Good to know: Technical-grade material is the standard commercial offering at research and specialty chemical scale. Buyers sourcing for process development or small-batch production should confirm purity specifications and verify lot consistency directly with the supplier.

Commercial specifications

• Confirm purity specifications
• Verify lot consistency with the supplier