CAS No.2052-49-5,Tetrabutylammonium hydroxide Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	2052-49-5
Name:	Tetrabutylammonium hydroxide
Article Data:	25
Cas Database

Formula:	C₁₆H₃₆N.OH
Molecular Weight:	259.476
Synonyms:	1-Butanaminium,N,N,N-tributyl-, hydroxide (9CI);Ammonium, tetrabutyl-, hydroxide (8CI);Tetrabutylammonium hydroxide (6CI);Tetrabutylammonium hydroxide solution;
EINECS:	218-147-6
Density:	0.995 g/cm³
Melting Point:	27-30 °C(lit.)
Boiling Point:	100 °C
Flash Point:	7 °C
Solubility:	Soluble in water, methanol.
Appearance:	Aqueous solution
Hazard Symbols:	T, F, C
Risk Codes:	34-36/38-23/24/25-11-67-39/23/24/25-36-65-63-38
Safety:	7-16-26-36/37/39-45-36/37-62-27
Transport Information:	UN 3267 8/PG 2
PSA:	23.06000
LogP:	4.82680

Synthetic route

: 1643-19-2
tetrabutylammomium bromide

: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
With potassium hydroxide In dichloromethane at 20℃; for 10h;	82%
With silver(l) oxide In water for 20h;
Multi-step reaction with 2 steps 1: potassium iodide / H2O 2: silver hydroxyde / H2O View Scheme

: 1033762-44-5
7-[(2E)-2-(2,3-dihydro-1H-inden-1-ylidene)ethyl]-8-([dimethyl(1,1,2-trimethylpropyl)silyl]oxy)-n,n,2,3-tetramethylimidazo[1,2-a]pyridine-6-carboxamide

: 429-41-4
tetrabutyl ammonium fluoride

A: 1033762-35-4
7-[(2E)-2-(2,3-dihydro-1H-inden-1-ylidene)ethyl]-8-hydroxy-n,n,2,3-tetramethylimidazo[1,2-a]pyridine-6-carboxamide

B: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
In tetrahydrofuran at 20℃; for 1h;	A 71% B n/a

...Expand

: 311-28-4
tetra-(n-butyl)ammonium iodide

: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
In water for 4h; electrolysis in a divided cell with Nafion membrane, -1.0 V;
With AgOH In water
With (Cy3P)2Pd(Ph)(OH); water In tetrahydrofuran at 20℃; Equilibrium constant; Inert atmosphere; Sealed vial;
With water; silver(l) oxide at 20℃;

: C34H51NOSi

A: 2052-49-5
tetra(n-butyl)ammonium hydroxide

B: 791-31-1
triphenylhydroxysilane

Conditions

Conditions	Yield
In acetonitrile at 25℃; Equilibrium constant;

: tetra-n-butylammonium bis(ortho-hydroxymethylphenolato)borate

A: 90-01-7
salicylic alcohol

B: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
With water; boric acid In dimethylsulfoxide-d6 at 30℃; Equilibrium constant;

: tetrabutyl-ammonium; benzo[1,3,2]dioxaborol-2-olate

A: 2052-49-5
tetra(n-butyl)ammonium hydroxide

B: 120-80-9
benzene-1,2-diol

Conditions

Conditions	Yield
With water; boric acid In dimethylsulfoxide-d6 at 30℃; Equilibrium constant;

: tetrabutyl-ammonium; 4H-benzo[1,3,2]dioxaborinin-2-olate

A: 90-01-7
salicylic alcohol

B: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
With water; boric acid In dimethylsulfoxide-d6 at 30℃; Equilibrium constant;

: tetra-n-butylammonium bis[catecholato(2-)-O,O']borate

A: 2052-49-5
tetra(n-butyl)ammonium hydroxide

B: 120-80-9
benzene-1,2-diol

Conditions

Conditions	Yield
With water; boric acid In dimethylsulfoxide-d6 at 30℃; Equilibrium constant;

: 1112-67-0
tetrabutyl-ammonium chloride

: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
With (Cy3P)2Pd(Ph)(OH); water In tetrahydrofuran at 20℃; Equilibrium constant; Inert atmosphere; Sealed vial;
With potassium hydroxide In ethanol at 40℃; for 12h; Inert atmosphere;
With potassium hydroxide In ethanol at 20℃; for 12h; Inert atmosphere;
With sodium hydroxide In dichloromethane

: 102-82-9
tributyl-amine

: 2052-49-5
tetra(n-butyl)ammonium hydroxide

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: acetonitrile / 33 h / 82 °C 2: potassium hydroxide / acetonitrile; ethanol / 50 h / 4 °C View Scheme

Raw Materials

1112-67-0

311-28-4

1643-19-2

429-41-4

Downstream Products

51-28-5

429-42-5

106-98-9

Total:101 Page 1 of 3 1 2 3 Next>>

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Chemistry

IUPAC Name: Tetrabutylazanium hydroxide
Synonyms of Tetrabutylammonium hydroxide (CAS NO.2052-49-5): N,N,N-Tributyl-1-butanaminium hydroxide ; Tetra-n-butylammonium hydroxide ; Tetrabutylammonium hydroxide ;1-Butanaminium, N,N,N-tributyl-, hydroxide ;1-Butanaminium, N,N,N-tributyl-, hydroxide (1:1) ; Ammonium, tetrabutyl-, hydroxide
CAS NO: 2052-49-5
Molecular Formula: C₁₆H₃₆N.OH
Molecular Weight: 259.47
Molecular Structure:
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 12
Polar Surface Area: 0 Å²
EINECS: 218-147-6
Melting point : 27-30 °C(lit.)
Boiling point : 100 °C
Density: 0.995
Refractive index: 1.4
Flash Point: 7°C
Storage temp: 2-8°C
Appearance: Aqueous solution
Sensitive: Air Sensitive/Hygroscopic
Product Categories: quarternary ammonium bases;Ammonium Hydroxides (Quaternary);Analytical Chemistry;HPLC Ion-Pair Reagents for Acidic Samples;Ion-Pair Reagents for HPLC;Quaternary Ammonium Compounds;Organic BasesEssential Chemicals;Reagent GradeVolumetric Solutions;Base Solutions;Titration;Organic BasesVolumetric Solutions;ACS GradeChemical Synthesis;Essential Chemicals;Routine Reagents

Uses

Tetrabutylammonium hydroxide (CAS NO.2052-49-5) is commonly used as a base in organic chemistry.

Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LDLo	subcutaneous	19mg/kg (19mg/kg)		Journal of Pharmacology and Experimental Therapeutics. Vol. 28, Pg. 367, 1926.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Safety Information about Tetrabutylammonium hydroxide (CAS NO.2052-49-5):
Hazard Codes: Corrosive C, Toxic T,F
Risk Statements: 34-36/38-11-67-39/23/24/25-65-63
R34: Causes burns.
R36/38: Irritating to eyes and skin.
R11: Highly flammable.
R67: Vapours may cause drowsiness and dizziness.
R63: Possible risk of harm to the unborn child.
R65: Harmful: may cause lung damage if swallowed.
R39/23/24/25: Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed
Safety Statements: 7-16-26-36/37/39-45-62-27
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.
S27: Take off immediately all contaminated clothing.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S62: If swallowed, do not induce vomitting; seek medical advice immediately and show this container or label.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: UN 3267 8/PG 2
WGK Germany: 1
RTECS: BS5425000
F: 9-34
Hazard: Note Highly Flammable/Toxic/Corrosive/Air Sensitive/Hygroscopic
HazardClass: 3
PackingGroup: II

Specification

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: Use foam, dry chemical, or carbon dioxide.
Handling: Avoid contact with eyes, skin, and clothing. Do not breathe dust, vapor, mist, or gas. Use only in a chemical fume hood.
Storage: Store in a cool, dry place. Store in a tightly closed container. Corrosives area.