93023-34-8

Basic information

• Product Name: 4-[(E)-(2-ethylphenyl)diazenyl]-N,N-dimethylaniline
• Synonyms: 2-ethyl-4-dimethylaminoazobenzene
• CAS NO: 93023-34-8
• Molecular Formula: C₁₆H₁₉N₃
• Molecular Weight: 253.3422
• Mol File: 93023-34-8.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 402.3°C at 760 mmHg
• Flash Point: 197.1°C
• Density: 1.01g/cm³
• Vapor Pressure: 1.11E-06mmHg at 25°C
• Refractive Index: 1.556
• CAS DataBase Reference: 4-[(E)-(2-ethylphenyl)diazenyl]-N,N-dimethylaniline(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[(E)-(2-ethylphenyl)diazenyl]-N,N-dimethylaniline(93023-34-8)
• EPA Substance Registry System: 4-[(E)-(2-ethylphenyl)diazenyl]-N,N-dimethylaniline(93023-34-8)

Safety Data

• Hazardous Substances Data: 93023-34-8(Hazardous Substances Data)

Upstream product

• 578-54-1 ortho-ethylaniline 
• 121-69-7 N,N-dimethyl-aniline 

Relevant articles and documents

Liquid azo dyes

Any liquid azo dyes, in which auxochrome such as dialkylamino, alkoxy, and amino group is attached in a molecule, were produced. In a series of 2-alkyl-4'-(dimethylamino)azobenzenes, the butyl, hexyl, octyl, and dodecyl derivatives were liquid at room temperature, whereas the propyl, 1-methylethyl, 1-methylpropyl, 1,1-dimethylethyl, and octadecyl derivatives were solid. Thus, it is essential for liquid azo dyes to have a medium n-alkyl group at the 2-position. In a series of 2-butyl-4'-(dialkylamino)azobenzenes, the dimethylamino, diethylamino, dibutylamino, dioctylamino, and didodecylamino derivatives were liquid. 2-Butyl-4'-methoxyazobenzene and 4-amino-3,5-dimethyl-2'-butylazobenenzne were also liquid, whereas 2-butyl-4'-hydroxyazobenznene, 4-amino-2'-butylazobenzene, and 2-butyl-4'-(methylamino)azobenzene were solid. The prevention of π/π stacking, alkyl-alkyl interactions, and intermolecular hydrogen bond could produce liquid azo dyes.