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Cas Database

Name	4-Butoxyaniline	EINECS	224-402-2
CAS No.	4344-55-2	Density	0.999 g/cm³
PSA	35.25000	LogP	3.02890
Solubility	N/A	Melting Point	130-132 °C
Formula	C₁₀H₁₅NO	Boiling Point	278 °C at 760 mmHg
Molecular Weight	165.235	Flash Point	123.6 °C
Transport Information	N/A	Appearance	clear dark brown liquid
Safety	26-28-36/37/39-45	Risk Codes	20/21/22-36/37/38
Molecular Structure		Hazard Symbols	Xi,Xn
Synonyms	Aniline,p-butoxy- (6CI,7CI,8CI);(4-Butoxyphenyl)amine;4-Amino-1-butoxybenzene;	Article Data	51

4-Butoxyaniline Synthetic route

: 7244-78-2
1-butoxy-4-nitrobenzene

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With hydrazine hydrate In methanol for 4h; Reflux;	99%
With tin(ll) chloride In ethanol at 80℃; for 2h;	65%
With hydrogenchloride; tin(II) chloride dihdyrate In ethanol	48%

: 109-69-3
n-Butyl chloride

: 127-19-5
N,N-dimethyl acetamide

: 123-30-8
4-amino-phenol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With sodium hydroxide	93%

: 23563-26-0
4-n-butoxyacetanilide

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With hydrogenchloride In methanol; water for 18h; Reflux;	86%
With sulfuric acid
With potassium hydroxide In ethanol for 12h; Heating;

: 106-40-1
4-bromo-aniline

: 71-36-3
butan-1-ol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With copper(l) iodide; N1, N2-diphenethyloxalamide; sodium t-butanolate In 1,4-dioxane for 24h; Schlenk technique; Inert atmosphere; Molecular sieve; Heating;	86%

: 109-65-9
1-bromo-butane

: 123-30-8
4-amino-phenol

A: 4344-55-2
para-butoxyaniline

B: 136540-19-7
(4-Butoxy-phenyl)-butyl-amine

C: 136540-20-0
(4-Butoxy-phenyl)-dibutyl-amine

Conditions

Conditions	Yield
With potassium hydroxide; Aliquat 336 at 60℃; for 7h;	A 29 % Chromat. B 28 % Chromat. C 82%
With potassium hydroxide; Aliquat 336 at 60℃; for 2h;	A 15 % Chromat. B 47 % Chromat. C 30 % Chromat.

: 109-65-9
1-bromo-butane

: 123-30-8
4-amino-phenol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 24h;	79%
With sodium hydride In acetonitrile at 20℃; for 24h;

: 112-36-7
3,6,9-trioxaundecane

: 109-69-3
n-Butyl chloride

: 123-30-8
4-amino-phenol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With sodium methylate In methanol	73.6%

: 109-69-3
n-Butyl chloride

: 123-30-8
4-amino-phenol

A: 4344-55-2
para-butoxyaniline

B: 136540-19-7
(4-Butoxy-phenyl)-butyl-amine

Conditions

Conditions	Yield
With sodium hydroxide; Aliquat 336 at 60℃; for 15h;	A 67% B 11%

: 540-37-4
p-aminoiodobenzene

: 71-36-3
butan-1-ol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With copper(l) iodide; 1,10-Phenanthroline; caesium carbonate at 110℃; for 23h;	40%

: 66-71-7
1,10-Phenanthroline

: 540-37-4
p-aminoiodobenzene

: 71-36-3
butan-1-ol

: 4344-55-2
para-butoxyaniline

Conditions

Conditions	Yield
With CuI; caesium carbonate	40%

4-Butoxyaniline Chemical Properties

IUPAC Name: 4-Butoxyaniline
Synonyms of 4-Butoxyaniline (CAS NO: 4344-55-2): Aminophenyl-n-butyl ether ; Aniline, p-butoxy- ; Benzenamine, 4-butoxy- ; p-Aminophenol n-butyl ether ; p-Butoxyaniline ; p-Butyloxyaniline
CAS NO: 4344-55-2
Molecular Formula: C₁₀H₁₅NO
Molecular Weight: 4344-55-2
Molecular Structure:
EINECS: 224-402-2
H bond acceptors: 2
H bond donors: 2
Freely Rotating Bonds: 5
Polar Surface Area: 12.47 Å²
Index of Refraction: 1.53
Molar Refractivity: 51.06 cm³
Molar Volume: 165.2 cm³
Surface Tension: 37.5 dyne/cm
Density: 0.999 g/cm³
Flash Point: 123.6 °C
Enthalpy of Vaporization: 51.66 kJ/mol
Boiling Point: 278 °C at 760 mmHg
Vapour Pressure: 0.00436 mmHg at 25°C
Appearance: clear dark brown liquid
Product Categories of 4-Butoxyaniline (CAS NO: 4344-55-2): Alkylanilines;Anilines (Building Blocks for Liquid Crystals);Building Blocks for Liquid Crystals;Functional Materials;Amines;C9 to C10;Nitrogen Compounds

4-Butoxyaniline Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	oral	500mg/kg (500mg/kg)		Journal of Pharmacology and Experimental Therapeutics. Vol. 89, Pg. 153, 1947.
rabbit	LD50	oral	500mg/kg (500mg/kg)		Nippon Yakurigaku Zasshi. Japanese Journal of Pharmacology. Vol. 52, Pg. 215, 1956.

4-Butoxyaniline Safety Profile

Safety Information about 4-Butoxyaniline (CAS NO: 4344-55-2):
Hazard Codes: Harmful Xn,Xi
Risk Statements: 20/21/22-36/37/38
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 26-28-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S28: After contact with skin, wash immediately with plenty of soap-suds.
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: 2810
WGK Germany: 3
RTECS: BW9420000
Hazard Note: Irritant
HazardClass: 6.1
PackingGroup: III

4-Butoxyaniline 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 water spray, dry chemical, carbon dioxide, or chemical foam.
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Store in a tightly closed container.

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