Didecyldimethylammonium halides

Monoalkyltrimethylammonium salts, e.g. cetyltrimethylammonium bromide. Monoalkyldimethylbenzylammonium chloride, e.g. benzalkonium chloride. Dialkyldimethylammonium salts, e.g. didecyldimethylammonium halides. 

Monoalkyldimethylbenzylammonium chloride, e.g. Benzalkonium chloride (18.1.2.). Dialkyldimethylammonium salts, e.g. didecyldimethylammonium halides (18.1.3.). Heteroaromatic ammonium salts (one R stands for a long-chain alkyl group, and the remaining three R are components of an aromatic system such as p5Tidine, quinoline or isoquinoline) e.g. cetylpyridinium halide and alkylisoquinolinium bromide (18.1.8.). 

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See also in sourсe #XX -- [ ]

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