Term Name: quaternary ammonium ion
Synonyms: a quaternary ammonium, Quaternary amine, quaternary ammonium ion, quaternary ammonium ions
Definition: A derivative of ammonium, NH4(+), in which all four of the hydrogens bonded to nitrogen have been replaced with univalent (usually organyl) groups.
Ontology: Chebi [CHEBI:35267]

Relationships
is a type of: ammonium ion derivative organic cation
has subtype: (1R,2S,1'R,2'S)-doxacurium (1S,2R,1'S,2'R)-doxacurium (13S,14R)-1,8-dihydroxy-13-O-acetyl-N-methylcanadine (13S,14R)-1,13-dihydroxy-N-methylcanadine (13S,14R)-1-hydroxy-13-O-acetyl-N-methylcanadine (S)-1,2,9,10-tetramethoxy-6-methylaporphine(1+) (S)-1-hydroxy-N-methylcanadine (S)-cis-N-methylstylopine (S)-cis-N-methyltetrahydropalmatine (S)-cis-N-methyltetrahydrothalifendine (S)-magnoflorine (S)-N-methylcanadine 1,1'-hexadecane-1,16-diylbis(1-methylpyrrolidinium) 1-methyl-1-[1-oxo-1-(10H-phenothiazin-10-yl)propan-2-yl]pyrrolidinium 2-fluorobenzenaminium 2-trimethylaminoethylphosphonic acid 3-(4-carboxybutanamido)-1-{4-[(2-hydroxyethyl)carbamoyl]benzyl}-1-methylpiperidinium 3-dehydrocarnitinium 3-dehydrocarnityl CoA 3-fluorobenzenaminium 3-hydroxy-N(6),N(6),N(6)-trimethyl-L-lysine 4-(trimethylammonio)but-2-enoic acid 4-(trimethylammonio)butanoic acid 4-(trimethylammonium)benzenediazonium 4-DAMP(1+) 4-fluorobenzenaminium 4-hydroxy-N,N,N-trimethyltryptamine(1+) acetyl-beta-methylthiocholine aclidinium acylcholine aeruginascin(1-) ambenonium an (S)-cis-N-methyl-7,8,13,14-tetrahydroprotoberberine angryline(1+) atracurium benzododecinium betaine aldehyde betaine aldehyde hydrate bethanechol bretylium butropium butylscopolamine butyrylthiocholine carnitinamide carnitinium carpronium cetyltrimethylammonium ion chlormequat choline hydrogen sulfate cholines cisatracurium clidinium cyclanoline decamethonium decyltrimethylammonium ion demarcarium diphthamide diphthamide zwitterion diphthine dodeclonium dodecyltrimethylammonium ion doxacurium ecothiopate edrophonium ethyl green(1+) ethyltrimethylammonium flutropium FM 1-43(2+) FM 4-64(2+) gamma-butyrobetainyl-CoA iodine green(2+) ipratropium JOJO-1(4+) LoLo-1(4+) m-trimethylammonio(2,2,2-trifluoro-1,1-dihydroxyethyl)benzene mepiquat meso-doxacurium methacholine methyl green(2+) methylated tertiary amine methyltrioctylammonium N(4)-bis(aminopropyl)spermidine(1+) N(4)-bis(aminopropyl)spermidine(5+) N(alpha),N(alpha),N(alpha)-trimethyl-L-histidinium(1+) N,N,N-trimethyl-N-(4-oxopentyl)ammonium N,N,N-trimethylglycinium N,N,N-trimethylglycyl-CoA N,N-dimethyl-L-prolinium N-dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonic acid N-methyl-alpha-berbine N-methylbulbocapnine(1+) neostigmine O-acetylcarnitinium octyltrimethylammonium ion oxotremorine M p-azophenyltrimethylammonium penotonium cation pentamethonium phosphatidylcholine(1+) Po-Pro-1(2+) Po-Pro-3(2+) PoPo-1(4+) PoPo-3(4+) propidium rocuronium sphingoid-1-phosphocholine(1+) sphingomyelin d18:1(1+) sphingosylphosphocholine acid succinylcholine tembetarine tetrabutylammonium tetraethylammonium tetrafluoroammonium tetramethylammonium tetrapentylammonium tetrapropylammonium tiotropium tiquizium ToTo-1(4+) tridihexethyl trimethylphenylammonium trospium umeclidinium vecuronium Yo-Pro-1(2+) Yo-Pro-3(2+) YoYo-1(4+)
has_parent_hydride: ammonium
inverse has_part: quaternary ammonium salt quaternary nitrogen compound