cas 55302-96-0, 5-[(2-Hydroxyethyl)amino]-o-cresol

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55302-96-0

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Method for preparing 5-(2-hydroxyethyl) amino-o-methylphenol
The invention relates to a method for preparing 5-(2-hydroxyethyl) amino-o-methylphenol, and the method is characterized by comprising the following steps: (1) condensation reaction, to be more specific, condensation reaction of 5-amino-2-methyl phenol and epoxy ethane in the presence of a catalyst in a certain solvent; (2) distillation, to be more specific, reaction liquid vacuum distillation for removal of a solvent to obtain a 5-(2-hydroxyethyl) amino-o-methylphenol crude product; and (3) purification, to be more specific, organic solvent recrystallization of the 5-(2-hydroxyethyl) amino-o-methylphenol crude product to obtain a purified 5-(2-hydroxyethyl) amino-o-methylphenol product. The method has the advantages of improving of product quality and grade, reducing of environmental pollution, reducing of cost, simple operation, clean and environmentally-friendly product production and makes the product more suitable for mass production.
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Paragraph 0025; 0026; 0028; 0030; 0031; 0032; 0034

(2017/08/28)

Substituted ortho-aminophenols, process for preparing them and their use for the oxidatin dyeing of keratinous fibres
5-Substituted ortho-aminophenols of formula: STR1 in which: R1 denotes a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl radical having 1 to 4 carbon atoms; and R2 denotes, independently of R1, an alkyl radical having 1 to 4 carbon atoms, an alkoxy radical having 1 to 4 carbon atoms or a benzyl radical; the addition salts with an acid and the phenates, and dyeing composition containing a compound of formula (I) or a salt or a phenate of such a compound. The 5-substituted ortho-aminophenols enable hair to be dyed in a rich spectrum of hues having good durability.
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(2008/06/13)

Chemical Properties

Appearance/Colour :light brown powder
Melting Point: 90-92 ºC
Boiling Point: 366 ºC at 760 mmHg
Flash Point:181.4 ºC
Density: 1.215 g/cm³
Solubility:Chloroform (Slightly), Methanol (Slightly)
Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature
Vapor Pressure: 5.32E-06mmHg at 25°C
Refractive Index: 1.626
PKA: 10.28±0.10(Predicted)
PSA: 52.49000
LogP: 1.17780

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55302-96-0

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Chemical Properties

Appearance/Colour :light brown powder

Melting Point: 90-92 ºC

Boiling Point: 366 ºC at 760 mmHg

Flash Point:181.4 ºC

Density: 1.215 g/cm³

Solubility:Chloroform (Slightly), Methanol (Slightly)

Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature

Vapor Pressure: 5.32E-06mmHg at 25°C

Refractive Index: 1.626

PKA: 10.28±0.10(Predicted)

PSA: 52.49000

LogP: 1.17780

Global suppliers and manufacturers of 55302-96-0total 84 suppliers on LookChem

Article Database

55302-96-0

Articles about 55302-96-0Total 2 be found

More Articles about upstream products of 55302-96-0

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Chemical Properties

Appearance/Colour :light brown powder

Melting Point: 90-92 ºC

Boiling Point: 366 ºC at 760 mmHg

Flash Point:181.4 ºC

Density: 1.215 g/cm3

Solubility:Chloroform (Slightly), Methanol (Slightly)

Storage Temp.:Keep in dark place,Inert atmosphere,Room temperature

Vapor Pressure: 5.32E-06mmHg at 25°C

Refractive Index: 1.626

PKA: 10.28±0.10(Predicted)

PSA: 52.49000

LogP: 1.17780

Global suppliers and manufacturers of 55302-96-0total 84 suppliers on LookChem

Density: 1.215 g/cm³