Product Name

  • Name

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

  • EINECS
  • CAS No. 539-17-3
  • Article Data11
  • CAS DataBase
  • Density 1.11g/cm3
  • Solubility 120.2ug/L(25 oC)
  • Melting Point 190-195 °C (dec.)
  • Formula C14H16 N4
  • Boiling Point 431.1°Cat760mmHg
  • Molecular Weight 240.308
  • Flash Point 214.5°C
  • Transport Information
  • Appearance
  • Safety Poison by intraperitoneal route. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
  • Risk Codes 748253
  • Molecular Structure Molecular Structure of 539-17-3 (N,N-DIMETHYL-4,4'-AZODIANILINE)
  • Hazard Symbols 748253
  • Synonyms Aniline,N,N-dimethyl-4,4'-azodi- (6CI,7CI); Benzenamine,4-[(4-aminophenyl)azo]-N,N-dimethyl- (9CI); C.I. Disperse Black 3 (8CI);4-(Dimethylamino)-4'-aminoazobenzene; 4-Amino-4'-(dimethylamino)azobenzene;4'-Amino-4-(dimethylamino)azobenzene; 4'-Amino-N,N-dimethyl-4-aminoazobenzene;ADAB; Acetile Diazo Black N; Acetile Diazo Black R; C.I. 11025; Diazo Nero MicrosetileG; Interchem Acetate Developed Black; Meisei Acemyl Diazo Black B; Meisei TerylDiazo Black CR; Microsetile Diazo Black G; Supracet Diazo Black A;p-Aminobenzeneazodimethylaniline; p'-Amino-p-(dimethylamino)azobenzene
  • PSA
  • LogP

4-(p-Dimethylaminophenylazo)aniline Chemical Properties

IUPAC Name: 4-(4-Aminophenyl)diazenyl-N,N-dimethylaniline
Synonyms of 4-(p-Dimethylaminophenylazo)aniline (CAS NO.539-17-3) : 4'-Amino-N,N-dimethyl-4-aminoazobenzene ; 4'-Amino-dab ; Azobenzene, 4-amino-4'-dimethylamino- ; Meisei Acemyl Diazo Black B ; Supracet Diazo Black A ; p-Aminobenzeneazodimethylaniline ; 4-((4-Aminophenyl)azo)-N,N-dimethylaniline ; Benzenamine, 4-(2-(4-aminophenyl)diazenyl)-N,N-dimethyl- ; Aniline, N,N-dimethyl-4,4'-azodi- (7CI)
CAS NO:539-17-3
Molecular Formula:C14H16N4
Molecular Weight :240.303640 g/mol
Molecular Structure :
Index of Refraction: 1.595 
Surface Tension: 42.1 dyne/cm
Density: 1.11 g/cm3
Flash Point: 214.5 °C
Enthalpy of Vaporization: 68.67 kJ/mol
Boiling Point: 431.1 °C at 760 mmHg
Vapour Pressure: 1.23E-07 mmHg at 25°C
EINECS: 208-712-5 
Melting Point:190-195 °C (dec.)
Storage temp: 2-8°C
Appearance: 4-(p-Dimethylaminophenylazo)aniline (CAS NO.539-17-3) is dark orange to rust brown crystalline powder.

4-(p-Dimethylaminophenylazo)aniline Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 350mg/kg (350mg/kg) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: CYANOSIS		 Cancer Research. Vol. 34, Pg. 2274, 1974.
rat LD50 intraperitoneal 350mg/kg (350mg/kg) LUNGS, THORAX, OR RESPIRATION: DYSPNEA

LUNGS, THORAX, OR RESPIRATION: CYANOSIS		 Cancer Research. Vol. 34, Pg. 2274, 1974.

4-(p-Dimethylaminophenylazo)aniline Consensus Reports

Reported in EPA TSCA Inventory.

4-(p-Dimethylaminophenylazo)aniline Safety Profile

Poison by intraperitoneal route. Mutation data reported. When 4-(p-Dimethylaminophenylazo)aniline (CAS NO.539-17-3) is heated to decomposition, it emits toxic fumes of NOx.

Hazard Codes: IrritantXi
Risk Statements :36/37/38
R36/37/38: 4-(p-Dimethylaminophenylazo)aniline (CAS NO.539-17-3) is irritating to eyes, respiratory system and skin.
Safety Statements :26-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
RTECS :BX5020000
F: 8-9-23

4-(p-Dimethylaminophenylazo)aniline Specification

1.General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
2.Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam. 
3.Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.
4.Storage: Store in a cool, dry place. Store in a tightly closed container.

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