2,5-Di(tert-amyl)hydroquinone supplier

Name
2,5-Di(tert-amyl)hydroquinone
EINECS 201-222-2
CAS No. 79-74-3
Article Data37
CAS DataBase
Density 0.99 g/cm³
Solubility 200ng/L at 20℃
Melting Point 179 °C
Formula C16H26 O2
Boiling Point 364.8 °C at 760 mmHg
Molecular Weight 250.381
Flash Point 162.7 °C
Transport Information
Appearance White powder
Safety Poison by intraperitoneal route. Low toxicity by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
Risk Codes
Molecular Structure
Hazard Symbols
Synonyms Hydroquinone,2,5-di-tert-pentyl- (6CI,7CI,8CI); 2,5-Bis(1,1-dimethylpropyl)-1,4-benzenediol;2,5-Bis(1,1-dimethylpropyl)hydroquinone;2,5-Di(tert-amyl)-1,4-benzohydroquinone; 2,5-Di(tert-amyl)hydroquinone;2,5-Di-t-amylhydroquinone; 2,5-Di-tert-amylhydroquinone;2,5-Di-tert-pentylhydroquinone; AH 25; Antage DAH; DAH; DAHQ; DTAHQ; Lowinox AH25; NSC 455; NSC 6267; Santovar A; Santovar TAHQ
PSA 40.46000
LogP 4.47300

Synthetic route

: 513-35-9
2-methyl-but-2-ene

: 123-31-9
hydroquinone

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Conditions

Conditions	Yield
methanesulfonic acid In toluene at 55 - 70℃; for 7h; Product distribution / selectivity;	90%
toluene-4-sulfonic acid In toluene at 85 - 110℃; for 4.5 - 7.5h; Product distribution / selectivity;

: 75-85-4
tert-Amyl alcohol

: 123-31-9
hydroquinone

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Conditions

Conditions	Yield
With sulfuric acid; acetic acid at 20℃; for 7h;	78%
With sulfuric acid
methanesulfonic acid In toluene at 88 - 110℃; for 8.5h; Product distribution / selectivity;

: 123-31-9
hydroquinone

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Conditions

Conditions	Yield
With acetic acid man gibt dann Amylen zu;

: 513-35-9
2-methyl-but-2-ene

: 7664-93-9
sulfuric acid

: 64-19-7
acetic acid

: 123-31-9
hydroquinone

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

...Expand

: 123-31-9
hydroquinone

tert.-pentyl chloride: tert.-pentyl chloride

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Conditions

Conditions	Yield
With ethanol; zinc(II) chloride

: 4584-63-8
2,5-bis-(1,1-dimethylpropyl)-1,4-benzoquinone

: 64-19-7
acetic acid

zinc dust: zinc dust

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

...Expand

: 64-17-5
ethanol

: 90-05-1
2-methoxy-phenol

A: 1020-31-1
3,5-Di-tert-butylcatechol

B: 128-39-2
2,6-di-tert-butylphenol

C: 2934-05-6
2,4-diisopropylphenol

D: 2078-54-8
2,6-diisopropylphenol

E: 2934-07-8
2,4,6-triisopropylphenol

F: 4130-42-1
2,6-di-tert-butyl-4-ethylphenol

G: 2444-28-2
2,6-di-tert-butyl-4-hydroxyphenol

H: 87-97-8
2,6-di-tert-butyl-4-methoxymethylene-phenol

I: 1138-52-9
3,5-Di-tert-butylphenol

J: 1879-09-0
2,4-dimethyl-6-tert-butylphenol

K: 52417-48-8
2-(2',5'-dimethoxyphenyl)propionaldehyde

L: 17540-75-9
2,6-di-tert-butyl-4-sec-butylphenol

M: 2050-46-6
1,2-diethoxybenzene

N: 21112-37-8
1,4-dimethoxy-2-tert-butylbenzene

O: 5076-72-2
1-ethoxy-4-methoxybenzene

P: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Q: 120-95-6
2,4-di-tert-amylphenol

R: 876-20-0
2,5-diethyl phenol

S: 33963-27-8
4-ethoxy-3-methoxytoluene

T: 59056-76-7
1,2-dimethoxy-4-butylbenzene

U: 131358-04-8
1,2-diethoxy-4-ethyl-benzene

V: 1620-98-0
3,5-di-t-butyl-4-hydroxybenzaldehyde

Conditions

Conditions	Yield
With ortho-tungstic acid at 300℃; for 6h; Autoclave;

...Expand

: 64-17-5
ethanol

: 90-05-1
2-methoxy-phenol

A: 94-71-3
2-Ethoxyphenol

B: 1020-31-1
3,5-Di-tert-butylcatechol

C: 2934-05-6
2,4-diisopropylphenol

D: 2078-54-8
2,6-diisopropylphenol

E: 2934-07-8
2,4,6-triisopropylphenol

F: 4130-42-1
2,6-di-tert-butyl-4-ethylphenol

G: 2444-28-2
2,6-di-tert-butyl-4-hydroxyphenol

H: 87-97-8
2,6-di-tert-butyl-4-methoxymethylene-phenol

I: 1138-52-9
3,5-Di-tert-butylphenol

J: 1879-09-0
2,4-dimethyl-6-tert-butylphenol

K: 52417-48-8
2-(2',5'-dimethoxyphenyl)propionaldehyde

L: 17540-75-9
2,6-di-tert-butyl-4-sec-butylphenol

M: 2050-46-6
1,2-diethoxybenzene

N: 21112-37-8
1,4-dimethoxy-2-tert-butylbenzene

O: 5076-72-2
1-ethoxy-4-methoxybenzene

P: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Q: 120-95-6
2,4-di-tert-amylphenol

R: 876-20-0
2,5-diethyl phenol

S: 33963-27-8
4-ethoxy-3-methoxytoluene

T: 59056-76-7
1,2-dimethoxy-4-butylbenzene

U: 131358-04-8
1,2-diethoxy-4-ethyl-benzene

V: 1620-98-0
3,5-di-t-butyl-4-hydroxybenzaldehyde

Conditions

Conditions	Yield
With tungsten(VI) oxide at 300℃; for 6h; Reagent/catalyst; Autoclave;

...Expand

: 64-17-5
ethanol

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

A: 1020-31-1
3,5-Di-tert-butylcatechol

B: 128-39-2
2,6-di-tert-butylphenol

C: 2934-05-6
2,4-diisopropylphenol

D: 2078-54-8
2,6-diisopropylphenol

E: 2934-07-8
2,4,6-triisopropylphenol

F: 4130-42-1
2,6-di-tert-butyl-4-ethylphenol

G: 2444-28-2
2,6-di-tert-butyl-4-hydroxyphenol

H: 87-97-8
2,6-di-tert-butyl-4-methoxymethylene-phenol

I: 1138-52-9
3,5-Di-tert-butylphenol

J: 1879-09-0
2,4-dimethyl-6-tert-butylphenol

K: 52417-48-8
2-(2',5'-dimethoxyphenyl)propionaldehyde

L: 17540-75-9
2,6-di-tert-butyl-4-sec-butylphenol

M: 2050-46-6
1,2-diethoxybenzene

N: 21112-37-8
1,4-dimethoxy-2-tert-butylbenzene

O: 5076-72-2
1-ethoxy-4-methoxybenzene

P: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Q: 120-95-6
2,4-di-tert-amylphenol

R: 876-20-0
2,5-diethyl phenol

S: 33963-27-8
4-ethoxy-3-methoxytoluene

T: 59056-76-7
1,2-dimethoxy-4-butylbenzene

U: 131358-04-8
1,2-diethoxy-4-ethyl-benzene

V: 1620-98-0
3,5-di-t-butyl-4-hydroxybenzaldehyde

Conditions

Conditions	Yield
With ortho-tungstic acid at 300℃; for 6h; Autoclave;

...Expand

: 94-71-3
2-Ethoxyphenol

: 64-17-5
ethanol

A: 1020-31-1
3,5-Di-tert-butylcatechol

B: 128-39-2
2,6-di-tert-butylphenol

C: 2934-05-6
2,4-diisopropylphenol

D: 2078-54-8
2,6-diisopropylphenol

E: 2934-07-8
2,4,6-triisopropylphenol

F: 4130-42-1
2,6-di-tert-butyl-4-ethylphenol

G: 2444-28-2
2,6-di-tert-butyl-4-hydroxyphenol

H: 87-97-8
2,6-di-tert-butyl-4-methoxymethylene-phenol

I: 1138-52-9
3,5-Di-tert-butylphenol

J: 1879-09-0
2,4-dimethyl-6-tert-butylphenol

K: 52417-48-8
2-(2',5'-dimethoxyphenyl)propionaldehyde

L: 17540-75-9
2,6-di-tert-butyl-4-sec-butylphenol

M: 2050-46-6
1,2-diethoxybenzene

N: 21112-37-8
1,4-dimethoxy-2-tert-butylbenzene

O: 5076-72-2
1-ethoxy-4-methoxybenzene

P: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

Q: 120-95-6
2,4-di-tert-amylphenol

R: 876-20-0
2,5-diethyl phenol

S: 33963-27-8
4-ethoxy-3-methoxytoluene

T: 59056-76-7
1,2-dimethoxy-4-butylbenzene

U: 131358-04-8
1,2-diethoxy-4-ethyl-benzene

V: 1620-98-0
3,5-di-t-butyl-4-hydroxybenzaldehyde

Conditions

Conditions	Yield
With ortho-tungstic acid at 300℃; for 6h; Autoclave;

...Expand

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: 4584-63-8
2,5-bis-(1,1-dimethylpropyl)-1,4-benzoquinone

Conditions

Conditions	Yield
With sodium hypochlorite; tetra(n-butyl)ammonium hydrogensulfate In ethyl acetate for 0.0833333h; Ambient temperature;	78%
With ethanol; iron(III) chloride
With thallium(III) trifluoroacetate

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: 108-24-7
acetic anhydride

: 1,4-diacetoxy-2,5-di-tert-pentyl-benzene

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: 103-71-9
phenyl isocyanate

: 1,4-di-tert-pentyl-2,5-bis-phenylcarbamoyloxy-benzene

: 64-17-5
ethanol

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: 7705-08-0
iron(III) chloride

: 4584-63-8
2,5-bis-(1,1-dimethylpropyl)-1,4-benzoquinone

...Expand

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: C16H25O2

Conditions

Conditions	Yield
With 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl In tetrachloromethane; acetonitrile Kinetics; Further Variations:; Solvents;

: 79-74-3
2,5-di(tert-amyl)-1,4-hydroquinone

: 1204-28-0
trimellitic anhydride acid chloride

: C34H30O10

Conditions

Conditions	Yield
With pyridine In tetrahydrofuran

2,5-Di(tert-amyl)hydroquinone Chemical Properties

Molecular Formula: C₁₆H₂₆O₂
Formula Weight: 250.38
IUPAC Name: 2,5-Bis(2-methylbutan-2-yl)benzene-1,4-diol
Synonyms: 2,5-Bis(1,1-dimethylpropyl)hydroquinone ; 2,5-Di-tert-pentylbenzene-1,4-diol ; 4-Benzenediol,2,5-bis(1,1-dimethylpropyl)-1 ; 2,5-Di-tert-pentylbenzene-1,4-diol
Melting Point of 2,5-Di(tert-amyl)hydroquinone (79-74-3): 179 ^°C
Flash Point of 2,5-Di(tert-amyl)hydroquinone (79-74-3): 162.7^°C
Boiling Point: 364.8^°C at 760 mmHg
Density of 2,5-Di(tert-amyl)hydroquinone (79-74-3): 0.99 g/cm³
Vapour Pressure: 7.84E-06 mmHg at 25^°C
Index of Refraction: 1.513

2,5-Di(tert-amyl)hydroquinone Toxicity Data With Reference

1.	orl-rat LD50:2 g/kg	IPSTB3 International Polymer Science and Technology. 3 (1976),93.
2.	ipr-mus LD50:200 mg/kg	NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD277-689 .
3.	orl-rbt LD50:2 g/kg	IPSTB3 International Polymer Science and Technology. 3 (1976),93.

2,5-Di(tert-amyl)hydroquinone Consensus Reports

Reported in EPA TSCA Inventory.

2,5-Di(tert-amyl)hydroquinone Safety Profile

Poison by intraperitoneal route. Low toxicity by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
RTECS : MX6300000

Product Name

2,5-Di(tert-amyl)hydroquinone

Synthetic route

2,5-Di(tert-amyl)hydroquinone Chemical Properties

2,5-Di(tert-amyl)hydroquinone Toxicity Data With Reference

2,5-Di(tert-amyl)hydroquinone Consensus Reports

2,5-Di(tert-amyl)hydroquinone Safety Profile

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