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CAS No.: | 79-74-3 |
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Name: | 2,5-Di(tert-amyl)hydroquinone |
Article Data: | 37 |
Molecular Structure: | |
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Formula: | C16H26 O2 |
Molecular Weight: | 250.381 |
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 |
EINECS: | 201-222-2 |
Density: | 0.99 g/cm3 |
Melting Point: | 179 °C |
Boiling Point: | 364.8 °C at 760 mmHg |
Flash Point: | 162.7 °C |
Solubility: | 200ng/L at 20℃ |
Appearance: | White powder |
Safety: | Poison by intraperitoneal route. Low toxicity by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes. |
PSA: | 40.46000 |
LogP: | 4.47300 |
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; |
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; |
Conditions | Yield |
---|---|
With acetic acid man gibt dann Amylen zu; |
2-methyl-but-2-ene
sulfuric acid
acetic acid
hydroquinone
2,5-di(tert-amyl)-1,4-hydroquinone
Conditions | Yield |
---|---|
With ethanol; zinc(II) chloride |
2,5-bis-(1,1-dimethylpropyl)-1,4-benzoquinone
acetic acid
2,5-di(tert-amyl)-1,4-hydroquinone
ethanol
2-methoxy-phenol
A
3,5-Di-tert-butylcatechol
B
2,6-di-tert-butylphenol
C
2,4-diisopropylphenol
D
2,6-diisopropylphenol
E
2,4,6-triisopropylphenol
F
2,6-di-tert-butyl-4-ethylphenol
G
2,6-di-tert-butyl-4-hydroxyphenol
H
2,6-di-tert-butyl-4-methoxymethylene-phenol
I
3,5-Di-tert-butylphenol
J
2,4-dimethyl-6-tert-butylphenol
K
2-(2',5'-dimethoxyphenyl)propionaldehyde
L
2,6-di-tert-butyl-4-sec-butylphenol
M
1,2-diethoxybenzene
N
1,4-dimethoxy-2-tert-butylbenzene
O
1-ethoxy-4-methoxybenzene
P
2,5-di(tert-amyl)-1,4-hydroquinone
Q
2,4-di-tert-amylphenol
R
2,5-diethyl phenol
S
4-ethoxy-3-methoxytoluene
T
1,2-dimethoxy-4-butylbenzene
U
1,2-diethoxy-4-ethyl-benzene
V
3,5-di-t-butyl-4-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With ortho-tungstic acid at 300℃; for 6h; Autoclave; |
ethanol
2-methoxy-phenol
A
2-Ethoxyphenol
B
3,5-Di-tert-butylcatechol
C
2,4-diisopropylphenol
D
2,6-diisopropylphenol
E
2,4,6-triisopropylphenol
F
2,6-di-tert-butyl-4-ethylphenol
G
2,6-di-tert-butyl-4-hydroxyphenol
H
2,6-di-tert-butyl-4-methoxymethylene-phenol
I
3,5-Di-tert-butylphenol
J
2,4-dimethyl-6-tert-butylphenol
K
2-(2',5'-dimethoxyphenyl)propionaldehyde
L
2,6-di-tert-butyl-4-sec-butylphenol
M
1,2-diethoxybenzene
N
1,4-dimethoxy-2-tert-butylbenzene
O
1-ethoxy-4-methoxybenzene
P
2,5-di(tert-amyl)-1,4-hydroquinone
Q
2,4-di-tert-amylphenol
R
2,5-diethyl phenol
S
4-ethoxy-3-methoxytoluene
T
1,2-dimethoxy-4-butylbenzene
U
1,2-diethoxy-4-ethyl-benzene
V
3,5-di-t-butyl-4-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With tungsten(VI) oxide at 300℃; for 6h; Reagent/catalyst; Autoclave; |
ethanol
benzene-1,2-diol
A
3,5-Di-tert-butylcatechol
B
2,6-di-tert-butylphenol
C
2,4-diisopropylphenol
D
2,6-diisopropylphenol
E
2,4,6-triisopropylphenol
F
2,6-di-tert-butyl-4-ethylphenol
G
2,6-di-tert-butyl-4-hydroxyphenol
H
2,6-di-tert-butyl-4-methoxymethylene-phenol
I
3,5-Di-tert-butylphenol
J
2,4-dimethyl-6-tert-butylphenol
K
2-(2',5'-dimethoxyphenyl)propionaldehyde
L
2,6-di-tert-butyl-4-sec-butylphenol
M
1,2-diethoxybenzene
N
1,4-dimethoxy-2-tert-butylbenzene
O
1-ethoxy-4-methoxybenzene
P
2,5-di(tert-amyl)-1,4-hydroquinone
Q
2,4-di-tert-amylphenol
R
2,5-diethyl phenol
S
4-ethoxy-3-methoxytoluene
T
1,2-dimethoxy-4-butylbenzene
U
1,2-diethoxy-4-ethyl-benzene
V
3,5-di-t-butyl-4-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With ortho-tungstic acid at 300℃; for 6h; Autoclave; |
2-Ethoxyphenol
ethanol
A
3,5-Di-tert-butylcatechol
B
2,6-di-tert-butylphenol
C
2,4-diisopropylphenol
D
2,6-diisopropylphenol
E
2,4,6-triisopropylphenol
F
2,6-di-tert-butyl-4-ethylphenol
G
2,6-di-tert-butyl-4-hydroxyphenol
H
2,6-di-tert-butyl-4-methoxymethylene-phenol
I
3,5-Di-tert-butylphenol
J
2,4-dimethyl-6-tert-butylphenol
K
2-(2',5'-dimethoxyphenyl)propionaldehyde
L
2,6-di-tert-butyl-4-sec-butylphenol
M
1,2-diethoxybenzene
N
1,4-dimethoxy-2-tert-butylbenzene
O
1-ethoxy-4-methoxybenzene
P
2,5-di(tert-amyl)-1,4-hydroquinone
Q
2,4-di-tert-amylphenol
R
2,5-diethyl phenol
S
4-ethoxy-3-methoxytoluene
T
1,2-dimethoxy-4-butylbenzene
U
1,2-diethoxy-4-ethyl-benzene
V
3,5-di-t-butyl-4-hydroxybenzaldehyde
Conditions | Yield |
---|---|
With ortho-tungstic acid at 300℃; for 6h; Autoclave; |
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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
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. |
Reported in EPA TSCA Inventory.
Poison by intraperitoneal route. Low toxicity by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.
RTECS : MX6300000