93841-25-9

Basic information

• Product Name: 2-(2-Hydroxy)ethyl-p-phenylene diamino sulfate
• Synonyms: hydroxyethyl-p-phenylenediamine sulphate;2-(2-HYDROXY)ETHYL-P-PHENYLENE DIAMINO SULFATE;3-(2-hydroxyethyl)-p-phenylenediammonium sulphate;HYDROXYETHYL-p-PHENYLENEDIAMINE SULFATE;2,5-Diaminophenylethanolsulfate;Hydroxyethyl-p-phenylenediaminesulfatephenylenediaminesulfate(2,5-Diaminophenylethanolsulfate);2-(2-Hydroxy)ethyl-p-phenylene;Benzeneethanol, 2,5-diamino-, sulfate (1:1) (salt)
• CAS NO: 93841-25-9
• Molecular Formula: C8H12N2O.H2O4S
• Molecular Weight: 250.27
• EINECS: 298-995-1
• Product Categories: API intermediates
• Mol File: 93841-25-9.mol
• Article Data: 1

Chemical Properties

• Melting Point: >240℃
• Boiling Point: 363.2 °C at 760 mmHg
• Flash Point: 173.4 °C
• Appearance: Off-white and light pink powder
• Density: 1.491g/cm3
• Vapor Pressure: 6.54E-06mmHg at 25°C
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• Water Solubility: 51.2g/L at 20℃
• CAS DataBase Reference: 2-(2-Hydroxy)ethyl-p-phenylene diamino sulfate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(2-Hydroxy)ethyl-p-phenylene diamino sulfate(93841-25-9)
• EPA Substance Registry System: 2-(2-Hydroxy)ethyl-p-phenylene diamino sulfate(93841-25-9)

Safety Data

• Hazardous Substances Data: 93841-25-9(Hazardous Substances Data)

Usage

Chemical Properties

Off-white and light pink powder

Flammability and Explosibility

Notclassified

InChI:InChI=1/C8H12N2O.H2O4S/c9-7-1-2-8(10)6(5-7)3-4-11;1-5(2,3)4/h1-2,5,11H,3-4,9-10H2;(H2,1,2,3,4)

Upstream product

• 1162262-42-1 6-chloroisochroman-1-one 

Relevant articles and documents

Synthesis method of 2, 5-diaminophenylethanol sulfate and application of 2, 5-diaminophenylethanol sulfate in anti-allergic hair dye

The invention discloses a synthesis method of 2, 5-diaminophenylethanol sulfate and application of 2, 5-diaminophenylethanol sulfate in an anti-allergic hair dye. The preparation method comprises thefollowing steps: taking 6-chloro-1-isochromanone as an initial raw material; carrying out saponification reaction and then acidifying to obtain 4-chloro-2-(2-hydroxyethyl) benzoic acid; ammonifying 4-chloro-2-(2-hydroxyethyl) benzoic acid and stronger ammonia water in an autoclave to prepare 4-amino-2-(2-hydroxyethyl) benzamide, carrying out Hoffman degradation on the 4-amino-2-(2-hydroxyethyl) benzamide to obtain 2, 5-diaminobenzeneethanol, and salifying with concentrated sulfuric acid to obtain the 2, 5-diaminobenzeneethanol sulfate in one step. The method has the advantages of the short synthesis process route, mild reaction conditions, the simple operation, low cost, high yield and the like, and the obtained 2, 5-diaminophenylethanol sulfate is used as a dye component to be applied tothe anti-allergic hair dye. Tests show that the hair dyeing property and color fastness are good when the hair dye is used for dyeing hair; and compared with the use of p-phenylenediamine as a dye component, the dye composition can effectively reduce irritation and has no sensitization reaction to skin.