1. ʻO nā paʻakai ammonium Quaternary he mau hui i hoʻokumu ʻia ma ke pani ʻana i nā ʻātoma hydrogen ʻehā i loko o nā ion ammonium me nā hui alkyl.

He surfactant cationic lākou me nā waiwai bactericidal maikaʻi loa, a ʻo ka ʻāpana kūpono o kā lākou hana bactericidal ʻo ia ka hui cationic i hoʻokumu ʻia e ka hui pū ʻana o nā aʻa organik a me nā ʻātoma nitrogen.
2. Mai ka makahiki 1935, i ka wā i ʻike ai ka poʻe Kelemania i ka hopena bactericidal o ka alkyl dimethyl ammonium gasification, ua hoʻohana lākou ia mea e mālama i nā ʻaʻahu koa e pale aku i ka maʻi ʻeha. ʻO ka noiʻi ʻana i nā mea antibacterial salt ammonium quaternary ua lilo mau ia i mea nui o ka nānā ʻana o nā mea noiʻi. ʻO nā mea antibacterial i hoʻomākaukau ʻia me nā paʻakai ammonium quaternary he mau waiwai antibacterial maikaʻi a hiki ke hoʻohana nui ʻia ma nā ʻano he nui e like me ka lāʻau lapaʻau, ka mālama wai, a me ka meaʻai.
3. ʻO nā hana o nā paʻakai ammonium quaternary:

ʻO nā fungicides mahiʻai, nā mea hoʻomaʻemaʻe wahi lehulehu, nā mea hoʻomaʻemaʻe wai e kaʻapuni ana, nā mea hoʻomaʻemaʻe aquaculture, nā mea hoʻomaʻemaʻe lapaʻau, nā mea hoʻomaʻemaʻe hale holoholona a me nā manu, nā mea hoʻomaʻemaʻe kai ʻulaʻula, nā mea hoʻomaʻemaʻe algae uliuli-ʻōmaʻomaʻo, a me nā kahua sterilization a me disinfection ʻē aʻe. ʻOi loa ka hopena bactericidal koʻikoʻi o nā paʻakai ammonium quaternary Gemini a me nā kumukūʻai haʻahaʻa.

ʻO ka Tetrabutylammonium bromide (TBAB), i ʻike ʻia hoʻi ʻo tetrabutylammonium bromide.

He paʻakai organik ia me ke ʻano molekala C₁₆H₃₆ʻO BrN.

He kristal keʻokeʻo a pauka paha ka huahana maʻemaʻe, me ka deliquescence a me kahi ʻala kūikawā. He paʻa ia i ka mahana o ka lumi a me ke kaomi lewa. Hoʻoheheʻe ʻia i ka wai, ka waiʻona, a me ka acetone, hoʻoheheʻe iki ʻia i ka benzene.

Choʻohana pinepine ʻia ma ke ʻano he waena i ka synthesis organik, ka mea hoʻouluulu hoʻoili pae, a me ka reagent ion pair.