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2138-43-4

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Basic Information
CAS No.: 2138-43-4
Name: 4-ISOPROPYLCATECHOL
Article Data: 14
Molecular Structure:
Molecular Structure of 2138-43-4 (4-ISOPROPYLCATECHOL)
Formula: C9H12 O2
Molecular Weight: 152.193
Synonyms: Pyrocatechol,4-isopropyl- (6CI,7CI,8CI); 1,2-Dihydroxy-4-isopropylbenzene;4-Isopropyl-1,2-dihydroxybenzene; 4-Isopropylcatechol; 4-Isopropylpyrocatechol;NSC 62676
Density: 1.116g/cm3
Melting Point: 78°C
Boiling Point: 271°Cat760mmHg
Flash Point: 129.2°C
Safety: Poison by intravenous route. A human skin irritant. When heated to decomposition it emits acrid smoke and fumes.
PSA: 40.46000
LogP: 2.22120
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Synthetic route
68591-07-1

2-hydroxy-5-isopropylbenzaldehyde

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With dihydrogen peroxide In sodium hydroxide for 0.5h; <45 deg C;85%
99-89-8

4-Isopropylphenol

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione In N,N-dimethyl-formamide at 20 - 23℃; for 4h;69%
Multi-step reaction with 2 steps
1: 40 percent / POCl3 / dimethylformamide / 1 h / Ambient temperature
2: 85 percent / 6percent H2O2 / aq. NaOH / 0.5 h / <45 deg C
View Scheme
Stage #1: 4-Isopropylphenol In dichloromethane at 0 - 20℃; for 66h;
Stage #2: With lithium aluminium tetrahydride In tetrahydrofuran at 0℃; for 1h; Further stages.;

2,2-dichloro-5-isopropyl-benzo[1,3]dioxole

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With water
18811-78-4

4,4'-(propane-2,2-diyl)bis(benzene-1,2-diol)

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With Menthane; hydrogen; nickel at 180 - 230℃; under 14710.2 - 18387.7 Torr;
4132-76-7

1-isopropyl 3,4-dimethoxy benzene

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With hydrogen iodide
120-80-9

benzene-1,2-diol

67-63-0

isopropyl alcohol

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
With sulfonated cation exchanger In toluene Heating;

2,2-dichloro-5-isopropyl-benzo[1,3]dioxole

7732-18-5

water

2138-43-4

4-isopropylcatechol

18811-78-4

4,4'-(propane-2,2-diyl)bis(benzene-1,2-diol)

menthane

menthane

hydrogen

hydrogen

nickel catalyst

nickel catalyst

A

2138-43-4

4-isopropylcatechol

B

120-80-9

benzene-1,2-diol

Conditions
ConditionsYield
at 180 - 230℃; under 14710.2 - 18387.7 Torr;
...Expand
77-08-7

3,3,3',3'-tetramethyl-2,3,2',3'-tetrahydro-[1,1']spirobiindene-5,6,5',6'-tetraol

A

2138-43-4

4-isopropylcatechol

B

120-80-9

benzene-1,2-diol

C

compound C12H16O2 of mp: 135 degree

compound C12H16O2 of mp: 135 degree

Conditions
ConditionsYield
at 300℃;
...Expand
108303-53-3

5-(1-methylethyl)-1,3-benzodioxole

2138-43-4

4-isopropylcatechol

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: phosphorus pentachloride
2: water
View Scheme
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Chemistry

Product Name: 4-Isopropylcatechol (CAS NO.2138-43-4)


Molecular Formula: C9H12O2
Molecular Weight: 152.19g/mol
Mol File: 2138-43-4.mol
Einecs: 218-384-5
Boiling point: 271 °C at 760 mmHg
Flash Point: 129.2 °C
Density: 1.116 g/cm3
Surface Tension: 44.5 dyne/cm
Enthalpy of Vaporization: 52.97 kJ/mol
Vapour Pressure: 0.00399 mmHg at 25°C
XLogP3: 2.1
H-Bond Donor: 2
H-Bond Acceptor: 2
Product Categories: Aromatic Phenols

Toxicity Data With Reference

1.    

skn-man 1%/48H

     BJDEAZ    British Journal of Dermatology. 94 (1976),687.
2.    

ivn-mus LD50:56 mg/kg

     CSLNX*    U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#07862 .

Safety Profile

Poison by intravenous route. A human skin irritant. When heated to decomposition it emits acrid smoke and fumes.

Specification

 4-Isopropylcatechol ,its CAS NO. is 2138-43-4,the synonyms is 4-Isopropylcatechol ; 4-(1-Methylethyl)-2-benzenediol ; 4-Isopropyl-pyrocatecho ; Pyrocatechol, 4-isopropyl- ; 4-Isopropylpyrocatechol ; Para-isopropylcatechol ; 4-Isopropyl-1,2-benzenediol .