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Ammonium salts are ionic compounds with the formula (R)4N+A-, where R is hydrogen, alkyl or aryl groups and A is an anion. When R is alkyl or aryl then they are referred to as quaternary ammonium salts. The quaternary ammonium cations are permanently charged, independent of the pH of their solution. Most of the ammonium salts are soluble in water and strongly dissociated. Ammonium salts are used as cleansing agents, food additives, diuretic, surfactants, antistatic agents and disinfectants. They are known to have antimicrobial activity. Osmotic pressure in cells is stabilized by quaternary ammonium salts.

Quaternary ammonium compounds containing long alkyl chains, like benzalkonium chloride, cetylpyridinium chloride, dofanium chloride, benzethonium chloride, methylbenzethonium chloride, cetalkonium chloride and didecyldimethylammonium chloride have activity against microbes, fungi, amoeba, and certain viruses. Since these quaternary ammonium compounds are deactivated by anionic detergents, they should not be used in hard water. They are routinely used as sanitizing agents. One of the day-to-day applications of quaternary ammonium salts in organic synthesis is their popular application as phase transfer catalysts (PTCs) in catalyzing the reaction between ionic and organic reactants. Chlormequat chloride functions as a plant growth regulator through inhibition of the production of gibberellins.

  • (1-Butyl)triethylammonium bromide, 97%
  • (1-Decyl)trimethylammonium bromide, 98%
  • (1-Dodecyl)trimethylammonium bromide, 99%
  • (1-Dodecyl)trimethylammonium chloride, 97%
  • (1-Hexadecyl)trimethylammonium bromide, 98%
  • (1-Hexadecyl)trimethylammonium chloride, 96%
  • (1-Hexyl)trimethylammonium bromide, 98%
  • (1R,2R)-2-[(4S,11bR)-3H-Dinaphtho[2,1-c:1',2'-e]phosphepin-4(5H)-yl]-1,2-diphenylethanammonium tetrafluoroborate, 97+%
  • (1-Tetradecyl)trimethylammonium bromide, 98%
  • (1-Tetradecyl)trimethylammonium chloride, 98%
  • 2-[(11bR)-3H-Dinaphtho[2,1-c:1',2'-e]phosphepin-4(5H)-yl]ethylammonium tetrafluoroborate, 97+%
  • 2-[(11bS)-3H-Dinaphtho[2,1-c:1',2'-e]phosphepin-4(5H)-yl]ethylammonium tetrafluoroborate, 97+%
  • (2-Chloroethyl)trimethylammonium chloride, 98% (dry wt.), may cont. up to 5% water
  • (2-Hydroxyethyl)trimethylammonium dimethyl phosphate, 95%
  • 2-(Methacryloyloxy)ethyltrimethylammonium chloride, 72% aq. soln., stab. with 150-200 ppm 4-methoxyphenol
  • Acetyl beta-methylcholine bromide, 98%
  • Acetylcholine iodide, 98%
  • Aliquat® 336 TG
  • Allyltriethylammonium bromide, 98+%
  • Aluminum trifluoromethanesulfonate, 99%
  • Ammonium formate, 97%
  • Ammonium L-(+)-tartrate, 98%
  • Ammonium O,O'-dimethyldithiophosphate, 95%
  • Ammonium oxalate monohydrate, 98%
  • Ammonium trifluoroacetate, 98%
  • Benzalkonium chloride
  • Benzalkonium chloride, 50% w/w aq. soln.
  • Benzyldimethylhexadecylammonium chloride, 95%
  • Benzyldimethyl-n-dodecylammonium chloride, 98%
  • Benzyltriethylammonium borohydride, 96%
  • Benzyltriethylammonium bromide, 98+%
  • Benzyltriethylammonium chloride, 99%
  • Benzyltriethylammonium dichloroiodate, 97%
  • Benzyltriethylammonium tetrafluoroborate, 98+%
  • Benzyltrimethylammonium bromide, 98+%
  • Benzyltrimethylammonium chloride, 97%
  • Benzyltrimethylammonium dichloroiodate, 95%
  • Benzyltrimethylammonium hydroxide, 20% w/w aq. soln.
  • Benzyltrimethylammonium hydroxide, 40% w/w aq. soln.
  • Benzyltrimethylammonium iodide, 98%
  • Benzyltrimethylammonium tribromide, 98%
  • Benzyltri-n-butylammonium bromide, 99%
  • Benzyltri-n-butylammonium chloride, 98%
  • Benzyltri-n-butylammonium iodide, 97%
  • Benzyltri-n-propylammonium chloride, 96%
  • Betaine, anhydrous, 98%
  • Bis(triphenylphosphine)iminium trifluoroacetate, 98%
  • Bis(triphenylphosphoranylidene)ammonium chloride, 97% (dry wt.), water <3%
  • Carbachol, 99%
  • (Chloromethylene)dimethylammonium chloride, 96%

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