71799-75-2

Basic information

• Product Name: 1,5-diamino-2-(4-ethoxyphenyl)-4,8-dihydroxyanthraquinone
• Synonyms: 1,5-diamino-2-(4-ethoxyphenyl)-4,8-dihydroxyanthraquinone;1,5-Diamino-2-(4-ethoxyphenyl)-4,8-dihydroxy-9,10-anthracenedione
• CAS NO: 71799-75-2
• Molecular Formula: C₂₂H₁₈N₂O₅
• Molecular Weight: 390.38872
• EINECS: 276-034-7
• Mol File: 71799-75-2.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 732.1°C at 760 mmHg
• Flash Point: 396.6°C
• Appearance: /
• Density: 1.466g/cm³
• Vapor Pressure: 3.73E-22mmHg at 25°C
• Refractive Index: 1.734
• CAS DataBase Reference: 1,5-diamino-2-(4-ethoxyphenyl)-4,8-dihydroxyanthraquinone(CAS DataBase Reference)
• NIST Chemistry Reference: 1,5-diamino-2-(4-ethoxyphenyl)-4,8-dihydroxyanthraquinone(71799-75-2)
• EPA Substance Registry System: 1,5-diamino-2-(4-ethoxyphenyl)-4,8-dihydroxyanthraquinone(71799-75-2)

Safety Data

• Hazardous Substances Data: 71799-75-2(Hazardous Substances Data)

Usage

Structure

Central anthraquinone core with two amino groups on one end and a 4-ethoxyphenyl group on the other

Usage

Dye and pigment in textile and paper industries

Color

Deep red to purple

Additional applications

Coloring agent in cosmetics and various applications

Solubility

Moderate solubility in organic solvents

Properties

Good light and wash fastness

Potential

Possible biological and pharmacological activities for further research and development in medical and pharmaceutical fields

InChI:InChI=1/C22H18N2O5/c1-2-29-11-5-3-10(4-6-11)12-9-15(26)18-19(20(12)24)22(28)17-14(25)8-7-13(23)16(17)21(18)27/h3-9,25-26H,2,23-24H2,1H3

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Relevant articles and documents

ORDER PARAMETERS FOR ISOMERIC PHENYL SUBSTITUTED ANTHRAQUINONE DYES DISSOLVED IN NEMATIC LIQUID CRYSTALS MIXTURES - INFLUENCE OF THE HOST.

Substitution of the anthraquinone ring system provided dyes suitable for guest-host applications. In general, one seeks to elongate the anthraquinonic system through a fourth ring. Different molecular structures have been proposed which all have similar ordering in the liquid crystalline host. Surprisingly, the 2-p-alkoxyphenyl substituted 1,5 dihydroxy-4, 8-diaminoanthraquinones have a higher order parameter in liquid crystalline mixtures of positive dielectric anisotropy made from cyano substituted moelcules. They lose this property in a system consisting of molecules without cyano groups at the terminii of the molecular axes. The properties of two isomeric substituted anthraquinone dyes in different hosts are compared in order to illustrate the considerable influence that dye-liquid crystal interactions may have on dye order parameter.