ethyldimethyl(9-octadecenyl)ammonium bromide is a chemical compound registered under CAS number 6458-13-5, with the molecular formula C22H46BrN and a molecular weight of about 404.51 g/mol. Its EINECS (EC) number is 229-265-2. It is also known as Alkenyl(C16-C18) ( dimethyl ethyl ammonium bromide; Onyxide. DeWeiChem supplies ethyldimethyl(9-octadecenyl)ammonium bromide for laboratory research and bulk production; product code 415204. Send an inquiry for purity, packaging, price and lead time.