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2,2',4,4'-Tetrahydroxybenzophenone

  • Name 2,2',4,4'-Tetrahydroxybenzophenone
  • EINECS205-028-9
  • CAS No. 131-55-5
  • Density1.526 g/cm3
  • PSA97.99000
  • LogP1.74000
  • SolubilitySlightly soluble in water.
  • Melting Point198-200 °C(lit.)
  • FormulaC13H10O5
  • Boiling Point531.2 °C at 760 mmHg
  • Molecular Weight246.219
  • Flash Point289.2 °C
  • Transport InformationN/A
  • Appearanceyellow to brown crystalline powder
  • Safety26-36-37/39
  • Risk Codes22-36/37/38
  • Molecular Structure
    Molecular Structure of 131-55-5 (2,2',4,4'-Tetrahydroxybenzophenone)
  • Hazard SymbolsHarmfulXn,IrritantXi
  • SynonymsHarmfulXn,IrritantXi
  • Article Data26

2,2',4,4'-Tetrahydroxybenzophenone Synthetic route

carbonylbis(benzene-4,1,3-triyl) tetraacetate

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
With hydrogenchloride In water at 20 - 100℃; for 6h; Temperature; Autoclave; Large scale;82.1%
89-86-1

4-hydroxysalicylic acid

108-46-3

recorcinol

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
With zinc(II) chloride; trichlorophosphate at 65℃; for 3h; Inert atmosphere;73%
With zinc(II) chloride; trichlorophosphate
With zinc(II) chloride at 125 - 140℃;
151-10-0

1,3-Dimethoxybenzene

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
With aluminium trichloride; 1,2-dichloro-ethane
2.4-dioxy-2'.4'-diacetoxy-benzophenone-imide

2.4-dioxy-2'.4'-diacetoxy-benzophenone-imide

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
With sulfuric acid
With sodium hydroxide
fluorescein chloride

fluorescein chloride

A

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

B

benzoic acid , 2',4'-dioxy-benzophenone-carboxylic acid-(2), resorcinol

benzoic acid , 2',4'-dioxy-benzophenone-carboxylic acid-(2), resorcinol

Conditions
ConditionsYield
With sodium hydroxide
131-54-4

bis(2-hydroxy-4-methoxyphenyl)-methanone

68-12-2, 33513-42-7

N,N-dimethyl-formamide

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
AlCl3
131-54-4

bis(2-hydroxy-4-methoxyphenyl)-methanone

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
With urea; AlCl3
3555-85-9

2,2',4,4'-tetramethoxybenzophenone

95-50-1

1,2-dichloro-benzene

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
AlCl3 In water
108-46-3

recorcinol

131-55-5

2,2',4,4'-tetrahydroxybenzophenone

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: chloroform / 4 h / 20 - 65 °C / Large scale
1.2: Large scale
2.1: aluminum (III) chloride / N,N-dimethyl-formamide; cis-1,2-Dichloroethylene / 30 - 85 °C / Large scale
3.1: hydrogenchloride / water / 6 h / 20 - 100 °C / Autoclave; Large scale
View Scheme
131-55-5

2,2',4,4'-tetrahydroxybenzophenone

1214-24-0

3,6-dihydroxy-xanthen-9-one

Conditions
ConditionsYield
In water at 220℃; under 1900 Torr;100%
In water at 190℃; for 48h;100%
In water at 200℃; for 6h; Sealed tube;100%

2,2',4,4'-Tetrahydroxybenzophenone Chemical Properties

Molecular structure of Benzophenone-2 (CAS NO.131-55-5) is:

Product Name: Benzophenone-2
CAS Registry Number: 131-55-5
IUPAC Name: bis(2,4-dihydroxyphenyl)methanone
Molecular Weight: 246.2155 [g/mol]
Molecular Formula: C13H10O5
XLogP3-AA: 2.4
H-Bond Donor: 4
H-Bond Acceptor: 5 
EINECS: 205-028-9
Melting Point: 198-200 °C(lit.)
Surface Tension: 83.1 dyne/cm
Density: 1.526 g/cm3
Flash Point: 289.2 °C
Enthalpy of Vaporization: 83.7 kJ/mol
Boiling Point: 531.2 °C at 760 mmHg
Vapour Pressure: 6.69E-12 mmHg at 25°C
Product Categories: Industrial/Fine Chemicals;Aromatic Benzophenones & Derivatives (substituted);Benzophenones (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;C13 to C14;Carbonyl Compounds;Ketones

2,2',4,4'-Tetrahydroxybenzophenone Uses

 Benzophenone-2 (CAS NO.131-55-5) is used for pharmaceutical intermediates, photographic materials, cosmetics anti-uv additive, etc.

2,2',4,4'-Tetrahydroxybenzophenone Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 1220mg/kg (1220mg/kg)   Journal of the American College of Toxicology. Vol. 2(5), Pg. 35, 1983.

2,2',4,4'-Tetrahydroxybenzophenone Safety Profile

Hazard Codes: HarmfulXn,Xi
Risk Statements: 22-36/37/38 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3
RTECS: DJ1892000

2,2',4,4'-Tetrahydroxybenzophenone Specification

 Benzophenone-2 , its cas register number is 131-55-5. It also can be called 2,2',4,4'-Tetrahydroxybenzophenone ; Di(2,4-dihydroxyphenyl)methanone ; Bis(2,4-dihydroxyphenyl)methanone ; Benzophenone, 2,2',4,4'-tetrahydroxy- ; Methanone, bis(2,4-dihydroxyphenyl)- .It is a yellow to brown crystalline powder.

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