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| CAS No.: | 615-94-1 |
|---|---|
| Name: | 2,5-DIHYDROXY-1,4-BENZOQUINONE |
| Article Data: | 46 |
| Molecular Structure: | |
|
|
|
| Formula: | C6H4O4 |
| Molecular Weight: | 140.095 |
| Synonyms: | Quinone,2,5-dihydroxy- (3CI);p-Benzoquinone, 2,5-dihydroxy- (6CI,7CI,8CI);2,5-Dihydroxy-p-benzoquinone;Anilic acid;NSC 3843; |
| EINECS: | 210-454-3 |
| Density: | 1.843 g/cm3 |
| Melting Point: | 235 °C (dec.)(lit.) |
| Boiling Point: | 322.3 °C at 760 mmHg |
| Flash Point: | 162.9 °C |
| Solubility: | Soluble in water. |
| Appearance: | Ochre to brown powder |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 20/21/22-36/37/38 |
| Safety: | 26-37/39 |
| PSA: | 74.60000 |
| LogP: | 0.02200 |
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| Conditions | Yield |
|---|---|
| With peracetic acid; acetic acid | 80% |
| With peracetic acid |
| Conditions | Yield |
|---|---|
| With dihydrogen peroxide; sodium hydroxide at 40 - 50℃; for 1.5h; | 79% |
| With sodium hydroxide; dihydrogen peroxide at 50℃; | |
| With sodium hydroxide; dihydrogen peroxide | |
| With water; dihydrogen peroxide; sodium hydroxide at 45 - 55℃; for 3.5h; Inert atmosphere; | |
| With 2(A-F),3(A-F),6(B-F)-heptadecakis-O-methyl-6(A)-deoxy-6(A)-oxo-α-cyclodextrin; dihydrogen peroxide at 25℃; for 1h; pH=7; Kinetics; Reagent/catalyst; aq. phosphate buffer; |
| Conditions | Yield |
|---|---|
| With potassium hydroxide | |
| Multi-step reaction with 2 steps 1: ethanol 2: aq. NaOH solution View Scheme |
| Conditions | Yield |
|---|---|
| With potassium hydroxide |
| Conditions | Yield |
|---|---|
| With sodium hydroxide |
- 119014-47-0
2-amino-5-hydroxy-[1,4]benzoquinone-4-imine
- 615-94-1
2,5-dihydroxy-1,4-benzoquinone
| Conditions | Yield |
|---|---|
| at 70℃; |
A
- 615-94-1
2,5-dihydroxy-1,4-benzoquinone
B
- 124251-44-1
5-anilino-2-hydroxy-1,4-benzoquinone
| Conditions | Yield |
|---|---|
| With sodium hydroxide |
| Conditions | Yield |
|---|---|
| With potassium hydroxide; oxygen | |
| With sodium hydroxide; dihydrogen peroxide |
| Conditions | Yield |
|---|---|
| (i) NaOMe, (ii) H2SO4, (iii) Mg(OMe)2; Multistep reaction; |
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Chemistry
The Molecular Structure of 2,5-Cyclohexadiene-1,4-dione,2,5-dihydroxy- (CAS NO.615-94-1) is
Cas Register Number: 615-94-1
IUPAC Name: 2,5-Dihydroxycyclohexa-2,5-diene-1,4-dione
Synonyms: 2,5-Dihydroxy-1,4-benzoquinone ; 2,5-Dihydroxy-p-benzoquinone ; 2,5-Cyclohexadiene-1,4-dione, 2,5-dihydroxy- ; 2,5-Dihydroxy-p-benzoquinone ; p-Benzoquinone, 2,5-dihydroxy- (8CI)
Molecular formula: C6H4O4
Molecular weight: 140.093560 g/mol
Product Categories: Anthraquinones, Hydroquinones and Quinones;Benzoquinones;Alcohols;Monomers;Polymer Science
Melting point: 235 °C (dec.)(lit.)
Apearnce: Ochre to brown powder
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 2
Polar Surface Area: 52.6 Å2
Index of Refraction: 1.729
Molar Refractivity: 30.31 cm3
Molar Volume: 75.9 cm3
Surface Tension: 122.4 dyne/cm
Density: 1.843 g/ cm3
Flash Point: 162.9 °C
Enthalpy of Vaporization: 65.39 kJ/mol
Boiling Point: 322.3 °C at 760 mmHg
Vapour Pressure of 2,5-Cyclohexadiene-1,4-dione,2,5-dihydroxy- (CAS NO.615-94-1): 2.24E-05 mmHg at 25°C
Safety Profile
Hazard Codes: 
Xn
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: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3