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  • 8.41435 - 4-(4-Nitrophenylazo)-1-naphthol

8.41435 EMD Millipore


4-(4-Nitrophenylazo)-1-naphthol for synthesis. CAS 5290-62-0, molar mass 293.28 g/mol., for synthesis

Synonym: Magneson II

  • CAS Number 5290-62-0

  • Linear Formula C₁₆H₁₁N₃O₃

  • Molecular Weight 293.28 g/mol

  •  EC Number 226-129-4



Related Categories Biochemicals and Reagents More...
packaging   10 g in Plastic bottle (8414350010)
mp   277 - 280 °C (decomposition)
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (TLC): ≥ 90.0 %
  Melting range (lower value): ≥ 278 °C
  Melting range (upper value): ≤ 284 °C
  Identity (IR): passes test

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Safety Information

HS Code 
2927 00 00
Hazard Statement(s) 
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s) 
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.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 
10 - 13 Other liquids and solids
WGK 2 water endangering
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Irritant  Irritant
Categories of danger 
R Phrase 
R 36/37/38
Irritating to eyes, respiratory system and skin.
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