Quaternary ammonium salts

Ammonium salts in which a nitrogen atom (with a +1 formal charge) has four carbon-nitrogen single bonds; this nitrogen could be bonded to four functional groups containing carbon.

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Tetramethylammonium hydroxide, 25% in water

CAS: 75-59-2 | C₄H₁₃NO | 91.15 g/mol

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Specifications

Viscosity	3.13 mPa.s (19°C)
Linear Formula	(CH₃)₄NOH
Molecular Weight (g/mol)	91.15
InChI Key	WGTYBPLFGIVFAS-UHFFFAOYSA-M
Density	1.0140g/mL
PubChem CID	60966
Name Note	25% in Water
Percent Purity	23 to 27%
Fieser	11,514
RTECS Number	PA0875000
Formula Weight	91.15
Melting Point	-25.0°C
Boiling Point	102.0°C
Color	Colorless to Yellow
Physical Form	Solution
Chemical Name or Material	Tetramethylammonium hydroxide
SMILES	C[N+](C)(C)C.[OH-]
Merck Index	15,9371
CAS	7732-18-5
Health Hazard 3	GHS P Statement Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: rinse mouth. Do NOT induce vomiting. Rinse mouth. IF IN EYES: Rinse cautiously with water for several minutes. Remove con
MDL Number	MFCD00008280
Health Hazard 2	GHS H Statement Causes severe skin burns and eye damage. Toxic if swallowed. Fatal in contact with skin. Causes damage to organs. Causes damage to organs through prolonged or repeated exposure. Toxic to aquatic life w
Solubility Information	Solubility in water: soluble.
Packaging	Plastic bottle
Flash Point	>95°C
Health Hazard 1	GHS Signal Word: Danger
Refractive Index	1.3780 to 1.3840 (20°C, 589nm)
Synonym	tetramethylammonium hydroxide,tmah,hydroxyde de tetramethylammonium,nmw-w,nmd 3,tetramethyl ammonium hydroxide,unii-5gkp7317q2,ammonium, tetramethyl-, hydroxide,methanaminium, n,n,n-trimethyl-, hydroxide,tetramethylammoniumhydroxide
TSCA	TSCA
IUPAC Name	tetramethylazanium;hydroxide
Beilstein	04,5
Molecular Formula	C₄H₁₃NO
EINECS Number	200-882-9
Specific Gravity	1.014

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Tetrabutylammonium Phosphate (White to Off-White Powder/HPLC Grade), Fisher Chemical™

CAS: 5574-97-0 Molecular Formula: C16H38NO4P Molecular Weight (g/mol): 339.46 MDL Number: MFCD00064526 InChI Key: ARRNBPCNZJXHRJ-UHFFFAOYSA-M PubChem CID: 2735142 IUPAC Name: tetrabutylazanium dihydrogen phosphate SMILES: OP(O)([O-])=O.CCCC[N+](CCCC)(CCCC)CCCC

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Specifications

PubChem CID	2735142
CAS	5574-97-0
Molecular Weight (g/mol)	339.46
MDL Number	MFCD00064526
SMILES	OP(O)([O-])=O.CCCC[N+](CCCC)(CCCC)CCCC
IUPAC Name	tetrabutylazanium dihydrogen phosphate
InChI Key	ARRNBPCNZJXHRJ-UHFFFAOYSA-M
Molecular Formula	C16H38NO4P

Tetramethylammonium hydroxide pentahydrate, 98%

CAS: 10424-65-4 Molecular Formula: C4H23NO6 Molecular Weight (g/mol): 181.23 MDL Number: MFCD00149566 InChI Key: MYXKPFMQWULLOH-UHFFFAOYSA-M Synonym: tetramethylammonium hydroxide pentahydrate,b2hkt2lckq,unii-b2hkt2lckq,methanaminium, n,n,n-trimethyl-, hydroxide, pentahydrate,tmaoh,tetramethylammoniumhydroxid,tetrametanoamonio hydroxido,tetrametiloamonio hydroxido,methanaminium, n,n,n-trimethyl-, hydroxide, hydrate 1:1:5,acmc-2098bm PubChem CID: 82620 IUPAC Name: tetramethylazanium;hydroxide;pentahydrate SMILES: O.O.O.O.O.[OH-].C[N+](C)(C)C

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Specifications

PubChem CID	82620
CAS	10424-65-4
Molecular Weight (g/mol)	181.23
MDL Number	MFCD00149566
SMILES	O.O.O.O.O.[OH-].C[N+](C)(C)C
Synonym	tetramethylammonium hydroxide pentahydrate,b2hkt2lckq,unii-b2hkt2lckq,methanaminium, n,n,n-trimethyl-, hydroxide, pentahydrate,tmaoh,tetramethylammoniumhydroxid,tetrametanoamonio hydroxido,tetrametiloamonio hydroxido,methanaminium, n,n,n-trimethyl-, hydroxide, hydrate 1:1:5,acmc-2098bm
IUPAC Name	tetramethylazanium;hydroxide;pentahydrate
InChI Key	MYXKPFMQWULLOH-UHFFFAOYSA-M
Molecular Formula	C4H23NO6

Tetramethylammonium hydroxide, 25% w/w aq. soln., Thermo Scientific Chemicals

CAS: 75-59-2 Molecular Formula: C4H13NO MDL Number: MFCD00008280 InChI Key: WGTYBPLFGIVFAS-UHFFFAOYSA-M Synonym: tetramethylammonium hydroxide,tmah,hydroxyde de tetramethylammonium,nmw-w,nmd 3,tetramethyl ammonium hydroxide,unii-5gkp7317q2,ammonium, tetramethyl-, hydroxide,methanaminium, n,n,n-trimethyl-, hydroxide,tetramethylammoniumhydroxide PubChem CID: 60966

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Specifications

PubChem CID	60966
CAS	75-59-2
MDL Number	MFCD00008280
Synonym	tetramethylammonium hydroxide,tmah,hydroxyde de tetramethylammonium,nmw-w,nmd 3,tetramethyl ammonium hydroxide,unii-5gkp7317q2,ammonium, tetramethyl-, hydroxide,methanaminium, n,n,n-trimethyl-, hydroxide,tetramethylammoniumhydroxide
InChI Key	WGTYBPLFGIVFAS-UHFFFAOYSA-M
Molecular Formula	C4H13NO

Trioctylmethylammonium Chloride (R=C8-C10) [Phase-transfer Catalyst], TCI America™

CAS: 63393-96-4 Molecular Formula: C25H54ClN Molecular Weight (g/mol): 404.16 MDL Number: MFCD00011862 InChI Key: XKBGEWXEAPTVCK-UHFFFAOYSA-M Synonym: methyltrioctylammonium chloride,aliquat 336,trioctylmethylammonium chloride,methyl trioctyl ammonium chloride,tomac,tricaprylmethylammonium chloride,capriquat,methyltricaprylylammonium chloride,tricaprylylmethylammonium chloride,trioctyl methyl ammonium chloride PubChem CID: 21218 ChEBI: CHEBI:75286 IUPAC Name: methyltrioctylazanium chloride SMILES: [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC

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Specifications

PubChem CID	21218
CAS	63393-96-4
Molecular Weight (g/mol)	404.16
ChEBI	CHEBI:75286
MDL Number	MFCD00011862
SMILES	[Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC
Synonym	methyltrioctylammonium chloride,aliquat 336,trioctylmethylammonium chloride,methyl trioctyl ammonium chloride,tomac,tricaprylmethylammonium chloride,capriquat,methyltricaprylylammonium chloride,tricaprylylmethylammonium chloride,trioctyl methyl ammonium chloride
IUPAC Name	methyltrioctylazanium chloride
InChI Key	XKBGEWXEAPTVCK-UHFFFAOYSA-M
Molecular Formula	C25H54ClN

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Tetra-n-butylammonium tetrafluoroborate, 99%

CAS: 429-42-5 Molecular Formula: C16H36BF4N Molecular Weight (g/mol): 329.27 MDL Number: MFCD00011634 InChI Key: NNZZSJSQYOFZAM-UHFFFAOYSA-N Synonym: tetrabutylammonium tetrafluoroborate,tetra-n-butylammonium tetrafluoroborate,tetrabutylammonium fluoroborate,1-butanaminium, n,n,n-tributyl-, tetrafluoroborate 1-,tetrabutyl ammonium tetrafluoroborate,tetrabutylammonium ion tetrafluoroborate,1-butanaminium, n,n,n-tributyl-, tetrafluoroborate 1-1:1,tbabf4,acmc-209jry,tbabf4; PubChem CID: 67932 IUPAC Name: tetrabutylazanium;tetrafluoroborate SMILES: F[B-](F)(F)F.CCCC[N+](CCCC)(CCCC)CCCC

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Specifications

PubChem CID	67932
CAS	429-42-5
Molecular Weight (g/mol)	329.27
MDL Number	MFCD00011634
SMILES	F[B-](F)(F)F.CCCC[N+](CCCC)(CCCC)CCCC
Synonym	tetrabutylammonium tetrafluoroborate,tetra-n-butylammonium tetrafluoroborate,tetrabutylammonium fluoroborate,1-butanaminium, n,n,n-tributyl-, tetrafluoroborate 1-,tetrabutyl ammonium tetrafluoroborate,tetrabutylammonium ion tetrafluoroborate,1-butanaminium, n,n,n-tributyl-, tetrafluoroborate 1-1:1,tbabf4,acmc-209jry,tbabf4;
IUPAC Name	tetrabutylazanium;tetrafluoroborate
InChI Key	NNZZSJSQYOFZAM-UHFFFAOYSA-N
Molecular Formula	C16H36BF4N

LiChropur™ Tetraheptylammonium bromide , ≥99.0% (AT), MilliporeSigma™ Supelco™

MDL Number: MFCD00011861

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Specifications

MDL Number	MFCD00011861

Benzalkonium chloride, 50% w/w aq. soln.

CAS: 63449-41-2 Molecular Formula: C21H38ClN Molecular Weight (g/mol): 339.99 MDL Number: MFCD00137276 InChI Key: JBIROUFYLSSYDX-UHFFFAOYSA-M Synonym: benzyldimethyldecylammonium chloride,benzenemethanaminium, n-decyl-n,n-dimethyl-, chloride,benzenemethanaminium, n-decyl-n,n-dimethyl-, chloride 1:1,quaternary ammonium compounds, benzyl-c8-18-alkyldimethyl, chlorides,roccal,benzyl decyl dimethylazanium chloride,tret-o-lite xc 511,ccris 4586,benzyl decyl dimethylammonium chloride,c8-18-alkydimethylbenzyl ammonium chlorides PubChem CID: 13762 IUPAC Name: benzyl-decyl-dimethylazanium;chloride SMILES: [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1

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Specifications

PubChem CID	13762
CAS	63449-41-2
Molecular Weight (g/mol)	339.99
MDL Number	MFCD00137276
SMILES	[Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1
Synonym	benzyldimethyldecylammonium chloride,benzenemethanaminium, n-decyl-n,n-dimethyl-, chloride,benzenemethanaminium, n-decyl-n,n-dimethyl-, chloride 1:1,quaternary ammonium compounds, benzyl-c8-18-alkyldimethyl, chlorides,roccal,benzyl decyl dimethylazanium chloride,tret-o-lite xc 511,ccris 4586,benzyl decyl dimethylammonium chloride,c8-18-alkydimethylbenzyl ammonium chlorides
IUPAC Name	benzyl-decyl-dimethylazanium;chloride
InChI Key	JBIROUFYLSSYDX-UHFFFAOYSA-M
Molecular Formula	C21H38ClN

Tetramethylammonium fluoride tetrahydrate, 98%

CAS: 17787-40-5 Molecular Formula: C₄H₁₂FN·₄H₂O Molecular Weight (g/mol): 165.21 MDL Number: MFCD00149968 InChI Key: HQFTZNVQVRRDLN-UHFFFAOYSA-M Synonym: tetramethylammonium fluoride tetrahydrate,tetramethylazanium fluoride tetrahydrate,methanaminium, n,n,n-trimethyl-, fluoride, tetrahydrate,tetramethylammonium tetrahydrate fluoride,tetramethylammonium ion tetrahydrate fluoride,acmc-1c8r1,tetramethylammoniumfluoridetetrahydrate,methanaminium,n,n,n-trimethyl-,fluoride,tetrahydrate 9ci,tetramethylamine, fluoride, hydrate, hydrate, hydrate, hydrate,methanaminium,n,n,n-trimethyl-, fluoride, tetrahydrate 9ci PubChem CID: 2723808 IUPAC Name: tetramethylazanium;fluoride;tetrahydrate SMILES: C[N+](C)(C)C.O.O.O.O.[F-]

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Specifications

PubChem CID	2723808
CAS	17787-40-5
Molecular Weight (g/mol)	165.21
MDL Number	MFCD00149968
SMILES	C[N+](C)(C)C.O.O.O.O.[F-]
Synonym	tetramethylammonium fluoride tetrahydrate,tetramethylazanium fluoride tetrahydrate,methanaminium, n,n,n-trimethyl-, fluoride, tetrahydrate,tetramethylammonium tetrahydrate fluoride,tetramethylammonium ion tetrahydrate fluoride,acmc-1c8r1,tetramethylammoniumfluoridetetrahydrate,methanaminium,n,n,n-trimethyl-,fluoride,tetrahydrate 9ci,tetramethylamine, fluoride, hydrate, hydrate, hydrate, hydrate,methanaminium,n,n,n-trimethyl-, fluoride, tetrahydrate 9ci
IUPAC Name	tetramethylazanium;fluoride;tetrahydrate
InChI Key	HQFTZNVQVRRDLN-UHFFFAOYSA-M
Molecular Formula	C₄H₁₂FN·₄H₂O

Tetraethylammonium chloride, For electrochemical analysis, ≥99.0%, MilliporeSigma™ Supelco™

MDL Number: MFCD00011828 Synonym: TEA chloride

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Specifications

MDL Number	MFCD00011828
Synonym	TEA chloride

Benzyldimethylhexadecylammonium chloride, 95%

CAS: 122-18-9 Molecular Formula: C25H46ClN Molecular Weight (g/mol): 396.10 MDL Number: MFCD00149967 InChI Key: SXPWTBGAZSPLHA-UHFFFAOYSA-M Synonym: cetalkonium chloride,benzyldimethylhexadecylammonium chloride,banicol,bonjela,cetyl zephiran,cetyldimethylbenzylammonium chloride,bicetonium,acinol,benzylhexadecyldimethylammonium chloride,baktonium PubChem CID: 31202 IUPAC Name: benzyl-hexadecyl-dimethylazanium;chloride SMILES: [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1

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Specifications

PubChem CID	31202
CAS	122-18-9
Molecular Weight (g/mol)	396.10
MDL Number	MFCD00149967
SMILES	[Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1
Synonym	cetalkonium chloride,benzyldimethylhexadecylammonium chloride,banicol,bonjela,cetyl zephiran,cetyldimethylbenzylammonium chloride,bicetonium,acinol,benzylhexadecyldimethylammonium chloride,baktonium
IUPAC Name	benzyl-hexadecyl-dimethylazanium;chloride
InChI Key	SXPWTBGAZSPLHA-UHFFFAOYSA-M
Molecular Formula	C25H46ClN

Tetrabutylammonium borohydride, 98%

CAS: 33725-74-5 Molecular Formula: C16H40BN Molecular Weight (g/mol): 257.31 MDL Number: MFCD00012035 InChI Key: GMBOFJFPOCGSOI-UHFFFAOYSA-N Synonym: tetrabutylammonium borohydride,tetra-n-butylammonium borohydride,n,n,n-tributylbutan-1-aminium tetrahydroborate,boron 1-; tetrabutylazanium,boron 1-; tetrabutylammonium PubChem CID: 9881569 IUPAC Name: boron(1-);tetrabutylazanium SMILES: [BH4-].CCCC[N+](CCCC)(CCCC)CCCC

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Specifications

PubChem CID	9881569
CAS	33725-74-5
Molecular Weight (g/mol)	257.31
MDL Number	MFCD00012035
SMILES	[BH4-].CCCC[N+](CCCC)(CCCC)CCCC
Synonym	tetrabutylammonium borohydride,tetra-n-butylammonium borohydride,n,n,n-tributylbutan-1-aminium tetrahydroborate,boron 1-; tetrabutylazanium,boron 1-; tetrabutylammonium
IUPAC Name	boron(1-);tetrabutylazanium
InChI Key	GMBOFJFPOCGSOI-UHFFFAOYSA-N
Molecular Formula	C16H40BN

Tetrapentylammonium bromide, For ion pair chromatography (AT), ≥99.0% (AT), MilliporeSigma™ Supelco™

MDL Number: MFCD00011856

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Specifications

MDL Number	MFCD00011856

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Tetramethylammonium fluoride tetrahydrate, 98%

CAS: 17787-40-5 Molecular Formula: C4H20FNO4 Molecular Weight (g/mol): 165.205 MDL Number: MFCD00149968 InChI Key: HQFTZNVQVRRDLN-UHFFFAOYSA-M Synonym: tetramethylammonium fluoride tetrahydrate,tetramethylazanium fluoride tetrahydrate,methanaminium, n,n,n-trimethyl-, fluoride, tetrahydrate,tetramethylammonium tetrahydrate fluoride,tetramethylammonium ion tetrahydrate fluoride,acmc-1c8r1,tetramethylammoniumfluoridetetrahydrate,methanaminium,n,n,n-trimethyl-,fluoride,tetrahydrate 9ci,tetramethylamine, fluoride, hydrate, hydrate, hydrate, hydrate,methanaminium,n,n,n-trimethyl-, fluoride, tetrahydrate 9ci PubChem CID: 2723808 IUPAC Name: tetramethylazanium;fluoride;tetrahydrate SMILES: C[N+](C)(C)C.O.O.O.O.[F-]

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Specifications

PubChem CID	2723808
CAS	17787-40-5
Molecular Weight (g/mol)	165.205
MDL Number	MFCD00149968
SMILES	C[N+](C)(C)C.O.O.O.O.[F-]
Synonym	tetramethylammonium fluoride tetrahydrate,tetramethylazanium fluoride tetrahydrate,methanaminium, n,n,n-trimethyl-, fluoride, tetrahydrate,tetramethylammonium tetrahydrate fluoride,tetramethylammonium ion tetrahydrate fluoride,acmc-1c8r1,tetramethylammoniumfluoridetetrahydrate,methanaminium,n,n,n-trimethyl-,fluoride,tetrahydrate 9ci,tetramethylamine, fluoride, hydrate, hydrate, hydrate, hydrate,methanaminium,n,n,n-trimethyl-, fluoride, tetrahydrate 9ci
IUPAC Name	tetramethylazanium;fluoride;tetrahydrate
InChI Key	HQFTZNVQVRRDLN-UHFFFAOYSA-M
Molecular Formula	C4H20FNO4

Tetraethylammonium fluoride hydrate, 98%

CAS: 98330-04-2 Molecular Formula: C8H20FN Molecular Weight (g/mol): 149.25 MDL Number: MFCD00149990 InChI Key: QSUJAUYJBJRLKV-UHFFFAOYSA-M Synonym: tetraethylammonium fluoride hydrate,tetraethylammonium hydrate fluoride,tetraethylammoniumfluoridehydrate,acmc-209nvn,et4nf.h2o,tetraethylazanium fluoride hydrate,tetraethyl ammonium fluoride hydrate,ethanaminium, n,n,n-triethyl-, fluoride, monohydrate PubChem CID: 16211652 SMILES: [F-].CC[N+](CC)(CC)CC

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Specifications

PubChem CID	16211652
CAS	98330-04-2
Molecular Weight (g/mol)	149.25
MDL Number	MFCD00149990
SMILES	[F-].CC[N+](CC)(CC)CC
Synonym	tetraethylammonium fluoride hydrate,tetraethylammonium hydrate fluoride,tetraethylammoniumfluoridehydrate,acmc-209nvn,et4nf.h2o,tetraethylazanium fluoride hydrate,tetraethyl ammonium fluoride hydrate,ethanaminium, n,n,n-triethyl-, fluoride, monohydrate
InChI Key	QSUJAUYJBJRLKV-UHFFFAOYSA-M
Molecular Formula	C8H20FN

Quaternary ammonium salts

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