1-(Chloromethyl)-2-vinylbenzene (CAS 22570-84-9): Properties, Synthesis, Applications & Safe Handling — A Complete Technical Guide
1-(Chloromethyl)-2-vinylbenzene — also known as o-vinylbenzyl chloride (o-VBC) , 2-chloromethylstyrene , or ortho-chloromethylstyrene (CAS 22570-84-9 ) — is a bifunctional aromatic monomer that combines a polymerizable vinyl group with a highly reactive chloromethyl (benzylic chloride) group on adjacent ring positions. This "dual reactivity" makes it a sought-after specialty intermediate for negative photoresists, ion-exchange membranes, functional polymers, and fine-chemical synthesis. This guide consolidates its identification data, physicochemical properties, preparation routes, industrial applications, and the storage and safety practices that procurement and R&D teams should verify before ordering. 1. Product Identification at a Glance Parameter Value CAS Registry Number 22570-84-9 IUPAC Name 1-(Chloromethyl)-2-ethenylbenzene Common Synonyms o-Vinylbenzyl chloride; 2-vinylbenzyl chloride; 2-chloromethylstyrene; 2-(chloromethyl)styrene; (2-vinylphenyl)methyl chlor...