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...
Cyclopentanone (CAS 120-92-3): Chemical Properties, Physical Characteristics and Industrial Safety Guide (2027)
1. What Is Cyclopentanone? Cyclopentanone is an organic compound belonging to the cyclic ketone family. Its molecular formula is C₅H₈O, and its molecular weight is approximately 84.12 g/mol. It consists of a five-membered carbon ring containing a carbonyl group (C=O). This molecular structure gives Cyclopentanone its characteristic chemical identity and distinguishes it from other ketones. Cyclopentanone is commonly identified by the following information: Property Information Chemical Name Cyclopentanone CAS Number 120-92-3 Molecular Formula C₅H₈O Molecular Weight 84.12 g/mol Chemical Family Cyclic Ketone Physical State Liquid Appearance Clear, colorless liquid EC Number 204-435-9 These identifiers are useful for distinguishing Cyclopentanone from other organic compounds in chemical documentation and scientific literature. 2. Molecular Structure and Chemical Characteristics The defining structural feature of Cyclopentanone is its five-membered carbon ring and ketone funct...