Product Name

  • Name

    Hexadecyltrimethylammonium hydroxide

  • EINECS 208-022-4
  • CAS No. 505-86-2
  • Article Data20
  • CAS DataBase
  • Density 0.988 g/mL at 25 °C
  • Solubility Soluble in water
  • Melting Point
  • Formula C19H43NO
  • Boiling Point
  • Molecular Weight 301.557
  • Flash Point 11 °C
  • Transport Information UN 3286 3/PG 2
  • Appearance clear colorless to pale yellow solution
  • Safety 7-16-26-36/37/39-45
  • Risk Codes 34-39/23/24/25-23/24/25-11
  • Molecular Structure Molecular Structure of 505-86-2 (Hexadecyltrimethylammonium hydroxide)
  • Hazard Symbols ToxicTCorrosiveCFlammableF
  • Synonyms 1-Hexadecanaminium,N,N,N-trimethyl-, hydroxide (9CI);Ammonium, hexadecyltrimethyl-, hydroxide(7CI,8CI);Hexadecyltrimethylammonium hydroxide (6CI);Cetyltrimethylammoniumhydroxide;Trimethylhexadecylammonium hydroxide;1-Hexadecanaminium,N,N,N-trimethyl-, hydroxide (1:1);
  • PSA 23.06000
  • LogP 5.99710

Synthetic route

cetyltrimethylammonim bromide
57-09-0

cetyltrimethylammonim bromide

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

Conditions
ConditionsYield
With Amberlyst A-26(OH-)form In methanol100%
With Amberlite CG-400 resin
With Amberlite IRA-900 In methanol
1-iodohexadecane
544-77-4

1-iodohexadecane

trimethylamine
75-50-3

trimethylamine

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

Conditions
ConditionsYield
Behandeln des erhaltenen Trimethylcetylammoniumjodid mit feuchtem Ag2O;
Hexamethyldecyltrimethylammonium sulfate
67355-36-6

Hexamethyldecyltrimethylammonium sulfate

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

Conditions
ConditionsYield
With barium dihydroxide In water
With barium dihydroxide
cetyltrimethylammonium chloride
112-02-7

cetyltrimethylammonium chloride

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

Conditions
ConditionsYield
With sodium hydroxide In water
With sodium hydroxide Heating;
With potassium hydroxide In ethanol
With potassium hydroxide In methanol at 25℃; for 2h;
With sodium hydroxide In methanol at 20℃;
(2S)-2-(6-methoxy(2-naphthyl))propanoic acid
22204-53-1

(2S)-2-(6-methoxy(2-naphthyl))propanoic acid

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

cetyltrimethylammonium naproxenate

cetyltrimethylammonium naproxenate

Conditions
ConditionsYield
In propan-1-ol100%
cis-di(thiocyanato)-(2,2'-bipyridyl-4,4'-dicarboxylicacid)(4,4'-dinonyl-2,2'-bipyridyl)ruthenium(II)
502693-09-6

cis-di(thiocyanato)-(2,2'-bipyridyl-4,4'-dicarboxylicacid)(4,4'-dinonyl-2,2'-bipyridyl)ruthenium(II)

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

C42H52N6O4RuS2*C19H42N(1+)*HO(1-)

C42H52N6O4RuS2*C19H42N(1+)*HO(1-)

Conditions
ConditionsYield
Stage #1: cis-di(thiocyanato)-(2,2'-bipyridyl-4,4'-dicarboxylicacid)(4,4'-dinonyl-2,2'-bipyridyl)ruthenium(II); cetyltrimethylammonium hydroxide In ethanol for 0.5h; pH=13;
Stage #2: With nitric acid In ethanol pH=4.3;		100%
cis-di(thiocyanato)-(2,2’-bipyridyl-4,4’-dicarboxylate)(4,4’-bis(5-(5-octyl-thiophen-2-yl)thiophen-2-yl)-2,2’-bipiridine)ruthenium(II)

cis-di(thiocyanato)-(2,2’-bipyridyl-4,4’-dicarboxylate)(4,4’-bis(5-(5-octyl-thiophen-2-yl)thiophen-2-yl)-2,2’-bipiridine)ruthenium(II)

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

C56H56N6O4RuS6*C19H42N(1+)*HO(1-)

C56H56N6O4RuS6*C19H42N(1+)*HO(1-)

Conditions
ConditionsYield
Stage #1: cis-di(thiocyanato)-(2,2’-bipyridyl-4,4’-dicarboxylate)(4,4’-bis(5-(5-octyl-thiophen-2-yl)thiophen-2-yl)-2,2’-bipiridine)ruthenium(II); cetyltrimethylammonium hydroxide In ethanol for 0.5h; pH=13;
Stage #2: With nitric acid In ethanol pH=4.3;		98%
C46H59N7O3

C46H59N7O3

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

C46H58N7O3(1-)*C19H42N(1+)

C46H58N7O3(1-)*C19H42N(1+)

Conditions
ConditionsYield
In methanol at 20℃; for 1h;98%
acifluorfen
50594-66-6

acifluorfen

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

C14H6ClF3NO5(1-)*C19H42N(1+)

C14H6ClF3NO5(1-)*C19H42N(1+)

Conditions
ConditionsYield
In methanol at 25℃; for 1h;98%
11-Phenoxyundecanoic acid
7170-44-7

11-Phenoxyundecanoic acid

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

11-Phenoxy-undecanoatehexadecyl-trimethyl-ammonium;

11-Phenoxy-undecanoatehexadecyl-trimethyl-ammonium;

Conditions
ConditionsYield
In methanol for 24h; Ambient temperature;95%
In methanol for 24h; Ambient temperature; Yield given;
bis(tetrabutylammonium) [cis-di(thiocyanato)-bis(2,2'-bipyridyl-4-carboxylate-4'-carboxylicacid)ruthenium(II)]

bis(tetrabutylammonium) [cis-di(thiocyanato)-bis(2,2'-bipyridyl-4-carboxylate-4'-carboxylicacid)ruthenium(II)]

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

C19H42N(1+)*C26H16N6O8RuS2*HO(1-)

C19H42N(1+)*C26H16N6O8RuS2*HO(1-)

Conditions
ConditionsYield
Stage #1: bis(tetrabutylammonium) [cis-di(thiocyanato)-bis(2,2'-bipyridyl-4-carboxylate-4'-carboxylicacid)ruthenium(II)]; cetyltrimethylammonium hydroxide In ethanol for 0.5h; pH=13;
Stage #2: With nitric acid In ethanol pH=4.3;		94%
europium(III) chloride hexahydrate

europium(III) chloride hexahydrate

cyclen tetrabutyrolactone
1408005-90-2

cyclen tetrabutyrolactone

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

CTA+[Eu(DOTA-N,N',N'',N'''-tetrahomoserine)]

CTA+[Eu(DOTA-N,N',N'',N'''-tetrahomoserine)]

Conditions
ConditionsYield
With water In ethanol for 4h; Reflux;74%
...Expand
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

N,N-dimethylhexadecylamine
112-69-6

N,N-dimethylhexadecylamine

Conditions
ConditionsYield
bei der Destillation;
p,p'-DDT
50-29-3

p,p'-DDT

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

1,1-bis(4-chlorophenyl)-2,2-dichloroethylene
72-55-9

1,1-bis(4-chlorophenyl)-2,2-dichloroethylene

Conditions
ConditionsYield
With sodium hydroxide In butan-1-ol at 25℃; Rate constant; dehydrohalogenation, effect of various alcohols (n-butyl and n-hexyl alcohol);
1-(2-bromoethyl)-4-chlorobenzene
6529-53-9

1-(2-bromoethyl)-4-chlorobenzene

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

4-vinylbenzyl chloride
1073-67-2

4-vinylbenzyl chloride

Conditions
ConditionsYield
With sodium hydroxide In water; acetonitrile at 25℃; Rate constant; under micellar and non micellar conditions, concentration varied;
(4-nitrophenyl)ethyl bromide
5339-26-4

(4-nitrophenyl)ethyl bromide

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

4-nitrostyrene
100-13-0

4-nitrostyrene

Conditions
ConditionsYield
With sodium hydroxide In water; acetonitrile at 25℃; Rate constant; under micellar and non micellar conditions, concentration varied;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

1-phenyl-2-bromoethane
103-63-9

1-phenyl-2-bromoethane

styrene
292638-84-7

styrene

Conditions
ConditionsYield
With sodium hydroxide In water; acetonitrile at 25℃; Rate constant; under micellar and non micellar conditions, concentration varied;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

11-[4-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid
214751-20-9

11-[4-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid

bis(hexadecyltrimethylammonium)phenyl-1,4-di(oxyundecanoate)

bis(hexadecyltrimethylammonium)phenyl-1,4-di(oxyundecanoate)

Conditions
ConditionsYield
In methanol for 24h; Ambient temperature; Yield given;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

11-[2-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid
214751-16-3

11-[2-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid

bis(hexadecyltrimethylammonium)phenyl-1,2-di(oxyundecanoate)

bis(hexadecyltrimethylammonium)phenyl-1,2-di(oxyundecanoate)

Conditions
ConditionsYield
In methanol for 24h; Ambient temperature; Yield given;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

11-[3-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid
214751-18-5

11-[3-(10-Carboxy-decyloxy)-phenoxy]-undecanoic acid

bis(hexadecyltrimethylammonium)phenyl-1,3-di(oxyundecanoate)

bis(hexadecyltrimethylammonium)phenyl-1,3-di(oxyundecanoate)

Conditions
ConditionsYield
In methanol for 24h; Ambient temperature; Yield given;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

poly(acrylic acid), Mw = 2000 g/mol

poly(acrylic acid), Mw = 2000 g/mol

cetyltrimethylammonium polyacrylate; poly(acrylic acid), Mw = 2000 g/mol

cetyltrimethylammonium polyacrylate; poly(acrylic acid), Mw = 2000 g/mol

Conditions
ConditionsYield
In water pH=8.6;
sodium aluminate

sodium aluminate

silica; hydrated

silica; hydrated

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

tetramethlammonium silicate

tetramethlammonium silicate

MCM-41

MCM-41

Conditions
ConditionsYield
Stage #1: sodium aluminate; silica; hydrated; cetyltrimethylammonium hydroxide; tetramethlammonium silicate at 100℃; for 20h;
Stage #2: at 540℃; for 1h;
Stage #1: sodium aluminate; silica; hydrated; cetyltrimethylammonium hydroxide; tetramethlammonium silicate at 100℃; for 20h;
Stage #2: at 540℃; for 1h;
...Expand
tin (IV) chloride pentahydrate

tin (IV) chloride pentahydrate

tetramethyl ammoniumhydroxide
75-59-2

tetramethyl ammoniumhydroxide

cetyltrimethylammonim bromide
57-09-0

cetyltrimethylammonim bromide

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

silica gel
112926-00-8, 7631-86-9

silica gel

Reaxys ID: 15738843

Reaxys ID: 15738843

Conditions
ConditionsYield
Stage #1: tin (IV) chloride pentahydrate; tetramethyl ammoniumhydroxide; cetyltrimethylammonim bromide; cetyltrimethylammonium hydroxide In water at 40℃;
Stage #2: silica gel at 20℃; for 1h;
...Expand
tin (IV) chloride pentahydrate

tin (IV) chloride pentahydrate

tetramethyl ammoniumhydroxide
75-59-2

tetramethyl ammoniumhydroxide

cetyltrimethylammonim bromide
57-09-0

cetyltrimethylammonim bromide

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

silica gel
112926-00-8, 7631-86-9

silica gel

Reaxys ID: 15738851

Reaxys ID: 15738851

Conditions
ConditionsYield
Stage #1: tin (IV) chloride pentahydrate; tetramethyl ammoniumhydroxide; cetyltrimethylammonim bromide; cetyltrimethylammonium hydroxide In water at 40℃;
Stage #2: silica gel at 20℃; for 1h;
...Expand
tin (IV) chloride pentahydrate

tin (IV) chloride pentahydrate

tetramethyl ammoniumhydroxide
75-59-2

tetramethyl ammoniumhydroxide

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

silica gel
112926-00-8, 7631-86-9

silica gel

Reaxys ID: 11464062

Reaxys ID: 11464062

Conditions
ConditionsYield
Stage #1: tin (IV) chloride pentahydrate; tetramethyl ammoniumhydroxide; cetyltrimethylammonium hydroxide In water for 0.166667h;
Stage #2: silica gel for 1h;
...Expand
N(-dithiocarboxy)sarcosine
40520-03-4

N(-dithiocarboxy)sarcosine

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

cetyltrimethylammonium N-(dithiocarboxy)sarcosine

cetyltrimethylammonium N-(dithiocarboxy)sarcosine

Conditions
ConditionsYield
With ammonium hydroxide In ethanol at 20℃; Cooling with ice;0.65 g
phosphotungstic acid

phosphotungstic acid

cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

tri(hexadecyltrimethylammonium) dodecatungstophosphate

tri(hexadecyltrimethylammonium) dodecatungstophosphate

Conditions
ConditionsYield
In water at 25℃; pH=7; Inert atmosphere;
cetyltrimethylammonium hydroxide
505-86-2

cetyltrimethylammonium hydroxide

carbonic acid dimethyl ester
616-38-6

carbonic acid dimethyl ester

trimethylmono-n-hexadecylammonium monomethylcarbonate
189301-01-7

trimethylmono-n-hexadecylammonium monomethylcarbonate

Conditions
ConditionsYield
In methanol

Hexadecyltrimethylammonium hydroxide Chemical Properties

Molecule structure of Hexadecyltrimethylammonium hydroxide (CAS NO.505-86-2):

IUPAC Name: Hexadecyl(trimethyl)azanium hydroxide 
Molecular Weight: 301.55082 [g/mol]
Molecular Formula: C19H43NO 
Density 0.988 g/mL at 25 °C
Refractive index: n20/D 1.372
Flash Point: 11 °C
Storage temp.: 2-8 °C
H-Bond Donor: 1
H-Bond Acceptor: 1
Rotatable Bond Count: 15
Exact Mass: 301.334465
MonoIsotopic Mass: 301.334465
Topological Polar Surface Area: 1
Heavy Atom Count: 21
Complexity: 181
Canonical SMILES: CCCCCCCCCCCCCCCC[N+](C)(C)C.[OH-]
InChI: InChI=1S/C19H42N.H2O/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H2/q+1;/p-1
InChIKey: WJLUBOLDZCQZEV-UHFFFAOYSA-M
EINECS: 208-022-4
Product Categories of Hexadecyltrimethylammonium hydroxide (CAS NO.505-86-2): Ammonium Hydroxides (Quaternary); Quaternary Ammonium Compounds; Chemical Synthesis; Organic Bases; Synthetic Reagents

Hexadecyltrimethylammonium hydroxide Safety Profile

Hazard Codes: CorrosiveC, ToxicT, FlammableF
Risk Statements 34-39/23/24/25-23/24/25-11 
R34:Causes burns. 
R39:Danger of very serious irreversible effects. 
R23 :Toxic by inhalation. 
R24:Toxic in contact with skin. 
R25 :Toxic if swallowed. 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R11:Highly flammable.
Safety Statements 7-16-26-36/37/39-45 
S7:Keep container tightly closed. 
S16:Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 3286 3/PG 2
WGK Germany: 1
F: 10-34
HazardClass: 8
PackingGroup: III

Hexadecyltrimethylammonium hydroxide Specification

 Hexadecyltrimethylammonium hydroxide (CAS NO.505-86-2) is also called Cetrimide [INN:BAN:JAN] ; Cetrimide ; 1-Hexadecanaminium, N,N,N-trimethyl-, hydroxide ; 1-Hexadecanaminium, N,N,N-trimethyl-, hydroxide (1:1) ; Hexadecyltrimethylammonium hydroxide . Hexadecyltrimethylammonium hydroxide (CAS NO.505-86-2) is clear colorless to pale yellow solution.

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