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CAS RN: 3118-97-6 | Product Number: O0101

Sudan II [=1-(2,4-Xylidylazo)-2-naphthol]

Purity: >95.0%(E)
  • Oil Red XO
  • Solvent Orange 7
  • 1-(2,4-Xylidylazo)-2-naphthol
2   ≥20 

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Product Number O0101
Purity / Analysis Method >95.0%(E)
Molecular Formula / Molecular Weight C__1__8H__1__6N__2O = 276.34  
Physical State (20 deg.C) Solid
CAS RN 3118-97-6
Reaxys Registry Number 1843315
PubChem Substance ID 87574109
SDBS (AIST Spectral DB) 12932
Colour Index 12140
MDL Number


Appearance Orange to Red powder to crystal
Purity(UV-vis method) min. 95.0 %
Melting point 158.0 to 163.0 °C
Lambda max. 496.0 to 500.0 nm(CHCl3)
Properties (reference)
Melting Point 160 °C
Maximum Absorption Wavelength 498(CHCl3) nm
Solubility in water Insoluble
Solubility (soluble in) Acetone,Chloroform,Benzene
Solubility (slightly sol. in) Alcohol
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws: / Compliance with laws, Regulations
Enzyme Commission 221-490-4
RTECS# QL5850000
Transport Information:
HS Number 3204190090
PubMed Literature

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