1. Quaternary ammonium cusbo waa isku-dhisyo la sameeyay iyadoo lagu bedelay dhammaan afarta atamka hydrogen ee ammonium ions oo leh kooxo alkyl ah.

Waxay yihiin surfactant cationic leh sifooyin bakteeriyada aad u fiican, iyo qaybta waxtarka leh ee hawlahooda bakteeriyada waa kooxda cationic ay sameeyeen isku darka xididada organic iyo atamka nitrogen.
2. Laga soo bilaabo 1935, markii Jarmalku ogaadeen saamaynta bakteeriyada alkyl dimethyl ammonium gasification, waxay u isticmaali jireen inay ku daaweeyaan dharka ciidamada si looga hortago caabuqa nabarrada. Cilmi-baadhista quaternary ammonium cusbada agabka bakteeriyada ayaa had iyo jeer ahaa diiradda cilmi-baarayaasha. Walxaha bakteeriyada ka hortaga ee lagu diyaariyey cusbada ammonium ee quaternary waxay leeyihiin sifooyin bakteeriyada bakteeriyada wanaagsan waxaana si weyn loogu isticmaali karaa meelo badan sida dawooyinka, daaweynta biyaha, iyo cuntada.
3. Shaqooyinka milixyada ammonium ee quaternary waxaa ka mid ah:

Jeermisyada beeraha, jeermis-dileyaasha goobaha caamka ah, jeermis-dileyaasha biyaha wareegaya, jeermis-dileyaasha aquaculture, jeermiska-daawada, jeermiska-jeermiska xoolaha iyo guriga digaaga, jeermis-dileyaasha mowjadaha cas, jeermiska algae buluug-cagaaran, iyo meelaha kale ee jeermis-dilaaca iyo jeermiska. Gaar ahaan Gemini quaternary ammonium cusbada waxay leeyihiin saameyn aad u fiican oo bakteeriyada ah iyo kharashyada guud ee hooseeya.

Tetrabutylammonium bromide (TBAB), sidoo kale loo yaqaan tetrabutylammonium bromide.

Waa cusbo dabiici ah oo leh caanaha molecular C ₁₆ H₃₆BrN.

Alaabada saafiga ah waa crystal ama budo cad, oo leh deliquence iyo ur gaar ah. Waxay ku xasilloon tahay heerkulka qolka iyo cadaadiska jawiga. Ku milmay biyaha, aalkolada, iyo acetone, wax yar ku milmay benzene.

Ccaadi ahaan loo isticmaalo sidii dhex dhexaad u ah isku-dhafka organic, kicinta wareejinta wajiga, iyo ion pair reagent.