2481-94-9

Basic information

• Product Name: Solvent Yellow 56
• Synonyms: 4'-(N,N-DIETHYLAMINO)-(1E)-DIPHENYLDIAZENE;4-(N,N-DIETHYLAMINO)AZOBENZENE;4-PHENYLAZO-N,N-DIETHYLANILINE;4-DIETHYLAMINOAZOBENZENE;OIL YELLOW E-190;SUDAN YELLOW GGN;4-diethylaminoazobenzene,98%;Benzenamine,N,N-diethyl-4-(phenylazo)-,(E)-
• CAS NO: 2481-94-9
• Molecular Formula: C₁₆H₁₉N₃
• Molecular Weight: 253.34
• EINECS: 219-616-8
• Product Categories: Dyes and Pigments;Organics;Solvent Dyestuff
• Mol File: 2481-94-9.mol
• Article Data: 2

Chemical Properties

• Melting Point: 94-96°C
• Boiling Point: 386.54°C (rough estimate)
• Flash Point: 194.046 °C
• Appearance: /
• Density: 1.0901 (rough estimate)
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.6470 (estimate)
• Storage Temp.: -20°C
• Solubility: Chloroform (Sparingly), DMSO (Slightly, Sonicated)
• PKA: 3.41±0.50(Predicted)
• Water Solubility: 264μg/L at 25℃
• CAS DataBase Reference: Solvent Yellow 56(CAS DataBase Reference)
• NIST Chemistry Reference: Solvent Yellow 56(2481-94-9)
• EPA Substance Registry System: Solvent Yellow 56(2481-94-9)

Safety Data

• Statements: 20/21/22-36/37/38-68
• Safety Statements: 26-36/37/39-60-36/37
• RTECS: CX9871000
• TSCA: Yes
• Hazardous Substances Data: 2481-94-9(Hazardous Substances Data)

Usage

Chemical Properties

Light brown powder

Definition

ChEBI: An azobenzene that is N,N-diethylaniline substituted at position 4 by a phenylazo group.

Preparation

aniline diazotization, and N,N-diethylbenzenamine coupling.

Flammability and Explosibility

Notclassified

Safety Profile

Mutation data reported. Whenheated to decomposition it emits toxic fumes of NOx.

Properties and Applications

red light yellow. Deep red powder. Insoluble in water, soluble in a variety of solvent. Used for oil, wax, fat class material coloring. Also can be used for plastic, printing ink, paint, etc coloring, and can also be used to smoke dye. Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%) Melting point Stable ISO Insoluble Insoluble Insoluble

Standard

Light Fastness

Melting point

Stable

InChI:InChI=1/C16H19N3/c1-3-19(4-2)16-12-10-15(11-13-16)18-17-14-8-6-5-7-9-14/h5-13H,3-4H2,1-2H3

Upstream product

• 2198-58-5 N,N-diethyl-p-phenylenediamine hydrochloride 
• 98-95-3 nitrobenzene 
• 93-05-0 N,N-diethylaniline 
• 62-53-3 aniline 
• 91-66-7 N,N-diethylaniline 
• 108178-69-4 N,N-diethyl-4-(phenyl-ONN-azoxy)aniline 
• 108193-68-6 N,N-diethyl-4-phenylazoaniline N-oxide 
• 2684-02-8 benzenediazonium 
• 127-09-3 sodium acetate 

Downstream Products

• 35478-73-0 N,N-diethylsulfanilic acid 
• 62-53-3 aniline 
• 108178-67-2 Diethyl-[4-(phenyl-ONN-azoxy)-phenyl]-amine 
• 108193-68-6 N,N-diethyl-4-phenylazoaniline N-oxide 
• 2058-67-5 N-ethyl-4-aminoazobenzene 
• 71-43-2 benzene 
• 128788-19-2 [2-(4-Diethylamino-phenylazo)-4-phenylazo-phenyl]-diethyl-amine 
• 108178-69-4 N,N-diethyl-4-(phenyl-ONN-azoxy)aniline 
• 144499-79-6 4-heptafluoropropyl-N,N-diethylaniline 
• 144499-73-0 4-diethylamino-4'-heptafluoropropylazobenzene 
• 16371-77-0 4,4'-bis-(4-diethylamino-phenylazo)-biphenyl 

Relevant articles and documents

A CONTINUOUS PROCESS FOR THE SYNTHESIS OF AZO DYES INVOLVING IN-SITU GENERATION OF DIAZONIUM SALTS

The present disclosure provides a continuous process for the synthesis coupled compounds of diazonium salts including azo dyes involving in-situ generation of diazonium salts. It further discloses a set up to carry out the process for the synthesis of coupled compounds of diazonium salts.