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  • 8.20515 - N,N-Dimethyl-4-nitrosoaniline

8.20515 EMD Millipore


N,N-Dimethyl-4-nitrosoaniline for synthesis. CAS 138-89-6, EC Number 205-343-1, chemical formula 4-(NO)C₆H₄N(CH₃)₂., for synthesis

Synonym: 4-Nitroso-N,N-dimethylaniline

  • CAS Number 138-89-6

  • Linear Formula C₈H₁₀N₂O

  • Molecular Weight 150.18 g/mol

  •  EC Number 205-343-1



Related Categories Biochemicals and Reagents More...
packaging   25 g in Glass bottle (8205150025)
density   1.15 g/cm3 (20 °C)
mp   84 - 87 °C
LD 50 oral   LD50 Rat 65 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (HClO₄): ≥ 98.0 %
  Melting range (lower value): ≥ 82 °C
  Melting range (upper value): ≤ 86 °C
  Identity (IR): passes test

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Safety Information

HS Code 
2921 42 00
Hazard Statement(s) 
H251: Self-heating: may catch fire.
H301 + H311 + H331: Toxic if swallowed, in contact with skin or if inhaled.
Precautionary Statement(s) 
P280: Wear protective gloves/ protective clothing.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician.
Storage class 
4.2 Pyrophoric and self-heating hazardous materials
WGK 3 highly water endangering
Carcinogenic compounds and flammable compounds labelled "Highly toxic" or "Toxic": container F. Alkyl sulfates are carcinogenic; Take particular care to avoid inhalation and skin contact. To neutralize alkyl sulfates, add dropwise (from a dropping funnel) to concentrated ice-cool Ammonia solution (Cat.No. 105426) with vigorous stirring. Before placing in container D, check the pH with pH Universal indicator strips (Cat.No. 109535).
Hazard Pictogram(s) 
GHS02  GHS02
Hazard Pictogram(s) 
GHS06  GHS06
Hazard Symbols 
Toxic  Toxic
Declaration (railroad and road) ADR, RID 
UN 1369 , 4.2, II
Declaration (transport by air) IATA-DGR 
UN 1369 , 4.2, II
Declaration (transport by sea) IMDG-Code 
UN 1369 , 4.2, II
Categories of danger 
R Phrase 
R 23/24/25
Toxic by inhalation, in contact with skin and if swallowed.
S Phrase 
S 36/37-45
Wear suitable protective clothing and gloves.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
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