N,N-DIMETHYL-4,4'-AZODIANILINE

Synonym(s):p,p′-Dimapa-aniline;p,p′-DMPA-aniline;4-(4-Dimethylaminophenylazo)aniline;4-Amino-4′-(dimethylamino)azobenzene;4-Amino-4′-dimethylaminoazobenzene

CAS NO.：539-17-3
Empirical Formula: C14H16N4
Molecular Weight: 240.3
MDL number: MFCD00010204
EINECS: 208-712-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 01:12:27

N,N-DIMETHYL-4,4'-AZODIANILINE Structural

What is N,N-DIMETHYL-4,4'-AZODIANILINE?

Chemical properties

dark orange to rust brown crystalline powder

The Uses of N,N-DIMETHYL-4,4'-AZODIANILINE

N,?N-?Dimethyl-?4,?4''-?azodianiline is a disperse dye. Dyes and metabolites.

What are the applications of Application

N,N-Dimethyl-4,4′-azodianiline is a dimethylated diazo dye

Preparation

4-Nitrobenzenamine diazo, and N,N-dimethylaniline?coupling, and then will the nitro reductive into amino.

Safety Profile

Poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx

Purification Methods

Crystallise the azo-dye from aqueous EtOH. [Beilstein 14 IV 1004.]

Properties and Applications

black, red and black. Red crystallization, melting point of 186 ~ 187 ℃. Soluble in ethanol, acetone, soluble fiber element, pottery, solvent and carbon tetrachloride,. The strong sulfuric acid is palm in light yellow, diluted for orange red; In the light of nitric acid for palm red solution; In strong hydrochloric acid solution for red; In the thick of sodium hydroxide solution don’t change color.

Standard(Polyamide)	Ironing Fastness		Light Fastness	Persperation Fastness		Washing Fastness
Standard(Polyamide)	Fading	Stain	Light Fastness	Fading	Stain	Fading	Stain
ISO		2	3	4	3-4	4	4

Properties of N,N-DIMETHYL-4,4'-AZODIANILINE

Melting point:	190-195 °C (dec.)
Boiling point:	373.02°C (rough estimate)
Density	1.0236 (rough estimate)
refractive index	1.4850 (estimate)
storage temp.	2-8°C
form	powder to crystal
pka	3.43±0.10(Predicted)
color	Yellow to Amber to Dark red
Water Solubility	120.2ug/L(25 ºC)
BRN	748253
CAS DataBase Reference	539-17-3(CAS DataBase Reference)
EPA Substance Registry System	Benzenamine, 4-[(4-aminophenyl)azo]-N,N-dimethyl- (539-17-3)

Safety information for N,N-DIMETHYL-4,4'-AZODIANILINE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.